Home / 28,384.12-39,167.10-16,451.20

Finding the Fourth Proportional to 28,384.12, 39,167.10 and 16,451.20

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Solution

The fourth proportional to 28,384.12, 39,167.10 and 16,451.20 is: 22,700.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.12 : 39,167.10 = 16,451.20 : x
  2. Step 2: Convert to fraction form
    28,384.12/39,167.10 = 16,451.20/x
  3. Step 3: Cross multiply
    28,384.12x = 39,167.10 × 16,451.20
  4. Step 4: Simplify right side
    28,384.12x = 644,345,795.52
  5. Step 5: Solve for x
    x = 644,345,795.52/28,384.12
  6. Step 6: Final answer
    x = 22,700.93

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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.