Home / 20,565.94-28,353.56-16,331.02

Finding the Fourth Proportional to 20,565.94, 28,353.56 and 16,331.02

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Solution

The fourth proportional to 20,565.94, 28,353.56 and 16,331.02 is: 22,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,565.94 : 28,353.56 = 16,331.02 : x
  2. Step 2: Convert to fraction form
    20,565.94/28,353.56 = 16,331.02/x
  3. Step 3: Cross multiply
    20,565.94x = 28,353.56 × 16,331.02
  4. Step 4: Simplify right side
    20,565.94x = 463,042,631.12
  5. Step 5: Solve for x
    x = 463,042,631.12/20,565.94
  6. Step 6: Final answer
    x = 22,515.02

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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.