Home / 47,711.17-65,870-29,830.42

Finding the Fourth Proportional to 47,711.17, 65,870 and 29,830.42

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Solution

The fourth proportional to 47,711.17, 65,870 and 29,830.42 is: 41,183.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,711.17 : 65,870 = 29,830.42 : x
  2. Step 2: Convert to fraction form
    47,711.17/65,870 = 29,830.42/x
  3. Step 3: Cross multiply
    47,711.17x = 65,870 × 29,830.42
  4. Step 4: Simplify right side
    47,711.17x = 1,964,929,765.40
  5. Step 5: Solve for x
    x = 1,964,929,765.40/47,711.17
  6. Step 6: Final answer
    x = 41,183.85

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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.