Home / 34,340.32-47,385.84-20,931.04

Finding the Fourth Proportional to 34,340.32, 47,385.84 and 20,931.04

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Solution

The fourth proportional to 34,340.32, 47,385.84 and 20,931.04 is: 28,882.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,340.32 : 47,385.84 = 20,931.04 : x
  2. Step 2: Convert to fraction form
    34,340.32/47,385.84 = 20,931.04/x
  3. Step 3: Cross multiply
    34,340.32x = 47,385.84 × 20,931.04
  4. Step 4: Simplify right side
    34,340.32x = 991,834,912.47
  5. Step 5: Solve for x
    x = 991,834,912.47/34,340.32
  6. Step 6: Final answer
    x = 28,882.52

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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.