Home / 17,280.31-25,920.45-5,434.03

Finding the Fourth Proportional to 17,280.31, 25,920.45 and 5,434.03

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Solution

The fourth proportional to 17,280.31, 25,920.45 and 5,434.03 is: 8,151.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,280.31 : 25,920.45 = 5,434.03 : x
  2. Step 2: Convert to fraction form
    17,280.31/25,920.45 = 5,434.03/x
  3. Step 3: Cross multiply
    17,280.31x = 25,920.45 × 5,434.03
  4. Step 4: Simplify right side
    17,280.31x = 140,852,502.91
  5. Step 5: Solve for x
    x = 140,852,502.91/17,280.31
  6. Step 6: Final answer
    x = 8,151.04

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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.