Home / 30,979.50-42,732.20-24,706.86

Finding the Fourth Proportional to 30,979.50, 42,732.20 and 24,706.86

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Solution

The fourth proportional to 30,979.50, 42,732.20 and 24,706.86 is: 34,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979.50 : 42,732.20 = 24,706.86 : x
  2. Step 2: Convert to fraction form
    30,979.50/42,732.20 = 24,706.86/x
  3. Step 3: Cross multiply
    30,979.50x = 42,732.20 × 24,706.86
  4. Step 4: Simplify right side
    30,979.50x = 1,055,778,544.66
  5. Step 5: Solve for x
    x = 1,055,778,544.66/30,979.50
  6. Step 6: Final answer
    x = 34,079.91

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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.