Home / 30,937.55-42,693.80-17,508.56

Finding the Fourth Proportional to 30,937.55, 42,693.80 and 17,508.56

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Solution

The fourth proportional to 30,937.55, 42,693.80 and 17,508.56 is: 24,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,937.55 : 42,693.80 = 17,508.56 : x
  2. Step 2: Convert to fraction form
    30,937.55/42,693.80 = 17,508.56/x
  3. Step 3: Cross multiply
    30,937.55x = 42,693.80 × 17,508.56
  4. Step 4: Simplify right side
    30,937.55x = 747,506,657.92
  5. Step 5: Solve for x
    x = 747,506,657.92/30,937.55
  6. Step 6: Final answer
    x = 24,161.80

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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.