Home / 20,592.18-28,417.14-11,160.72

Finding the Fourth Proportional to 20,592.18, 28,417.14 and 11,160.72

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Solution

The fourth proportional to 20,592.18, 28,417.14 and 11,160.72 is: 15,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.18 : 28,417.14 = 11,160.72 : x
  2. Step 2: Convert to fraction form
    20,592.18/28,417.14 = 11,160.72/x
  3. Step 3: Cross multiply
    20,592.18x = 28,417.14 × 11,160.72
  4. Step 4: Simplify right side
    20,592.18x = 317,155,742.74
  5. Step 5: Solve for x
    x = 317,155,742.74/20,592.18
  6. Step 6: Final answer
    x = 15,401.76

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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.