Home / 30,937.13-42,693.27-16,789.97

Finding the Fourth Proportional to 30,937.13, 42,693.27 and 16,789.97

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Solution

The fourth proportional to 30,937.13, 42,693.27 and 16,789.97 is: 23,170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,937.13 : 42,693.27 = 16,789.97 : x
  2. Step 2: Convert to fraction form
    30,937.13/42,693.27 = 16,789.97/x
  3. Step 3: Cross multiply
    30,937.13x = 42,693.27 × 16,789.97
  4. Step 4: Simplify right side
    30,937.13x = 716,818,638.55
  5. Step 5: Solve for x
    x = 716,818,638.55/30,937.13
  6. Step 6: Final answer
    x = 23,170.17

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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.