Home / 34,262.76-47,280-20,832.15

Finding the Fourth Proportional to 34,262.76, 47,280 and 20,832.15

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Solution

The fourth proportional to 34,262.76, 47,280 and 20,832.15 is: 28,746.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,262.76 : 47,280 = 20,832.15 : x
  2. Step 2: Convert to fraction form
    34,262.76/47,280 = 20,832.15/x
  3. Step 3: Cross multiply
    34,262.76x = 47,280 × 20,832.15
  4. Step 4: Simplify right side
    34,262.76x = 984,944,052.00
  5. Step 5: Solve for x
    x = 984,944,052.00/34,262.76
  6. Step 6: Final answer
    x = 28,746.78

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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.