Home / 28,088.82-42,133.20-11,445.24

Finding the Fourth Proportional to 28,088.82, 42,133.20 and 11,445.24

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Solution

The fourth proportional to 28,088.82, 42,133.20 and 11,445.24 is: 17,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.82 : 42,133.20 = 11,445.24 : x
  2. Step 2: Convert to fraction form
    28,088.82/42,133.20 = 11,445.24/x
  3. Step 3: Cross multiply
    28,088.82x = 42,133.20 × 11,445.24
  4. Step 4: Simplify right side
    28,088.82x = 482,224,585.97
  5. Step 5: Solve for x
    x = 482,224,585.97/28,088.82
  6. Step 6: Final answer
    x = 17,167.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.