Home / 21,727.71-29,998.76-14,651.55

Finding the Fourth Proportional to 21,727.71, 29,998.76 and 14,651.55

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Solution

The fourth proportional to 21,727.71, 29,998.76 and 14,651.55 is: 20,228.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.71 : 29,998.76 = 14,651.55 : x
  2. Step 2: Convert to fraction form
    21,727.71/29,998.76 = 14,651.55/x
  3. Step 3: Cross multiply
    21,727.71x = 29,998.76 × 14,651.55
  4. Step 4: Simplify right side
    21,727.71x = 439,528,258.82
  5. Step 5: Solve for x
    x = 439,528,258.82/21,727.71
  6. Step 6: Final answer
    x = 20,228.93

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.