Home / 20,682.95-28,542.17-12,614.74

Finding the Fourth Proportional to 20,682.95, 28,542.17 and 12,614.74

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Solution

The fourth proportional to 20,682.95, 28,542.17 and 12,614.74 is: 17,408.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.95 : 28,542.17 = 12,614.74 : x
  2. Step 2: Convert to fraction form
    20,682.95/28,542.17 = 12,614.74/x
  3. Step 3: Cross multiply
    20,682.95x = 28,542.17 × 12,614.74
  4. Step 4: Simplify right side
    20,682.95x = 360,052,013.77
  5. Step 5: Solve for x
    x = 360,052,013.77/20,682.95
  6. Step 6: Final answer
    x = 17,408.16

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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.