Home / 30,510.38-42,104.12-17,081.58

Finding the Fourth Proportional to 30,510.38, 42,104.12 and 17,081.58

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Solution

The fourth proportional to 30,510.38, 42,104.12 and 17,081.58 is: 23,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,510.38 : 42,104.12 = 17,081.58 : x
  2. Step 2: Convert to fraction form
    30,510.38/42,104.12 = 17,081.58/x
  3. Step 3: Cross multiply
    30,510.38x = 42,104.12 × 17,081.58
  4. Step 4: Simplify right side
    30,510.38x = 719,204,894.11
  5. Step 5: Solve for x
    x = 719,204,894.11/30,510.38
  6. Step 6: Final answer
    x = 23,572.47

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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.