Home / 30,957.57-42,721.11-17,528.43

Finding the Fourth Proportional to 30,957.57, 42,721.11 and 17,528.43

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Solution

The fourth proportional to 30,957.57, 42,721.11 and 17,528.43 is: 24,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,957.57 : 42,721.11 = 17,528.43 : x
  2. Step 2: Convert to fraction form
    30,957.57/42,721.11 = 17,528.43/x
  3. Step 3: Cross multiply
    30,957.57x = 42,721.11 × 17,528.43
  4. Step 4: Simplify right side
    30,957.57x = 748,833,986.16
  5. Step 5: Solve for x
    x = 748,833,986.16/30,957.57
  6. Step 6: Final answer
    x = 24,189.04

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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.