Home / 30,737.46-42,418.08-17,987.70

Finding the Fourth Proportional to 30,737.46, 42,418.08 and 17,987.70

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Solution

The fourth proportional to 30,737.46, 42,418.08 and 17,987.70 is: 24,823.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,737.46 : 42,418.08 = 17,987.70 : x
  2. Step 2: Convert to fraction form
    30,737.46/42,418.08 = 17,987.70/x
  3. Step 3: Cross multiply
    30,737.46x = 42,418.08 × 17,987.70
  4. Step 4: Simplify right side
    30,737.46x = 763,003,697.62
  5. Step 5: Solve for x
    x = 763,003,697.62/30,737.46
  6. Step 6: Final answer
    x = 24,823.25

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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.