Home / 21,670.47-32,505.66-13,913.91

Finding the Fourth Proportional to 21,670.47, 32,505.66 and 13,913.91

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Solution

The fourth proportional to 21,670.47, 32,505.66 and 13,913.91 is: 20,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.47 : 32,505.66 = 13,913.91 : x
  2. Step 2: Convert to fraction form
    21,670.47/32,505.66 = 13,913.91/x
  3. Step 3: Cross multiply
    21,670.47x = 32,505.66 × 13,913.91
  4. Step 4: Simplify right side
    21,670.47x = 452,280,827.73
  5. Step 5: Solve for x
    x = 452,280,827.73/21,670.47
  6. Step 6: Final answer
    x = 20,870.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.