Home / 30,545.07-42,151.91-17,116.89

Finding the Fourth Proportional to 30,545.07, 42,151.91 and 17,116.89

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Solution

The fourth proportional to 30,545.07, 42,151.91 and 17,116.89 is: 23,621.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,545.07 : 42,151.91 = 17,116.89 : x
  2. Step 2: Convert to fraction form
    30,545.07/42,151.91 = 17,116.89/x
  3. Step 3: Cross multiply
    30,545.07x = 42,151.91 × 17,116.89
  4. Step 4: Simplify right side
    30,545.07x = 721,509,521.18
  5. Step 5: Solve for x
    x = 721,509,521.18/30,545.07
  6. Step 6: Final answer
    x = 23,621.14

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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.