Home / 28,818.76-39,772.96-16,892.12

Finding the Fourth Proportional to 28,818.76, 39,772.96 and 16,892.12

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Solution

The fourth proportional to 28,818.76, 39,772.96 and 16,892.12 is: 23,312.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.76 : 39,772.96 = 16,892.12 : x
  2. Step 2: Convert to fraction form
    28,818.76/39,772.96 = 16,892.12/x
  3. Step 3: Cross multiply
    28,818.76x = 39,772.96 × 16,892.12
  4. Step 4: Simplify right side
    28,818.76x = 671,849,613.08
  5. Step 5: Solve for x
    x = 671,849,613.08/28,818.76
  6. Step 6: Final answer
    x = 23,312.93

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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.