Home / 28,772.28-39,700.80-16,023.96

Finding the Fourth Proportional to 28,772.28, 39,700.80 and 16,023.96

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Solution

The fourth proportional to 28,772.28, 39,700.80 and 16,023.96 is: 22,110.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,772.28 : 39,700.80 = 16,023.96 : x
  2. Step 2: Convert to fraction form
    28,772.28/39,700.80 = 16,023.96/x
  3. Step 3: Cross multiply
    28,772.28x = 39,700.80 × 16,023.96
  4. Step 4: Simplify right side
    28,772.28x = 636,164,031.17
  5. Step 5: Solve for x
    x = 636,164,031.17/28,772.28
  6. Step 6: Final answer
    x = 22,110.31

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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.