Home / 30,585.28-42,207.30-17,159.92

Finding the Fourth Proportional to 30,585.28, 42,207.30 and 17,159.92

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Solution

The fourth proportional to 30,585.28, 42,207.30 and 17,159.92 is: 23,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.28 : 42,207.30 = 17,159.92 : x
  2. Step 2: Convert to fraction form
    30,585.28/42,207.30 = 17,159.92/x
  3. Step 3: Cross multiply
    30,585.28x = 42,207.30 × 17,159.92
  4. Step 4: Simplify right side
    30,585.28x = 724,273,891.42
  5. Step 5: Solve for x
    x = 724,273,891.42/30,585.28
  6. Step 6: Final answer
    x = 23,680.47

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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.