Home / 38,494.08-53,118-21,723.84

Finding the Fourth Proportional to 38,494.08, 53,118 and 21,723.84

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Solution

The fourth proportional to 38,494.08, 53,118 and 21,723.84 is: 29,976.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,494.08 : 53,118 = 21,723.84 : x
  2. Step 2: Convert to fraction form
    38,494.08/53,118 = 21,723.84/x
  3. Step 3: Cross multiply
    38,494.08x = 53,118 × 21,723.84
  4. Step 4: Simplify right side
    38,494.08x = 1,153,926,933.12
  5. Step 5: Solve for x
    x = 1,153,926,933.12/38,494.08
  6. Step 6: Final answer
    x = 29,976.74

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Half scale
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Double scale
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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.