Home / 20,624.15-28,461.16-11,192.71

Finding the Fourth Proportional to 20,624.15, 28,461.16 and 11,192.71

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Solution

The fourth proportional to 20,624.15, 28,461.16 and 11,192.71 is: 15,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,624.15 : 28,461.16 = 11,192.71 : x
  2. Step 2: Convert to fraction form
    20,624.15/28,461.16 = 11,192.71/x
  3. Step 3: Cross multiply
    20,624.15x = 28,461.16 × 11,192.71
  4. Step 4: Simplify right side
    20,624.15x = 318,557,510.14
  5. Step 5: Solve for x
    x = 318,557,510.14/20,624.15
  6. Step 6: Final answer
    x = 15,445.85

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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.