Home / 20,525.91-28,326.21-12,572.52

Finding the Fourth Proportional to 20,525.91, 28,326.21 and 12,572.52

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Solution

The fourth proportional to 20,525.91, 28,326.21 and 12,572.52 is: 17,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.91 : 28,326.21 = 12,572.52 : x
  2. Step 2: Convert to fraction form
    20,525.91/28,326.21 = 12,572.52/x
  3. Step 3: Cross multiply
    20,525.91x = 28,326.21 × 12,572.52
  4. Step 4: Simplify right side
    20,525.91x = 356,131,688.38
  5. Step 5: Solve for x
    x = 356,131,688.38/20,525.91
  6. Step 6: Final answer
    x = 17,350.35

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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.