Home / 42,930.92-64,396.06-13,348.70

Finding the Fourth Proportional to 42,930.92, 64,396.06 and 13,348.70

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Solution

The fourth proportional to 42,930.92, 64,396.06 and 13,348.70 is: 20,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,930.92 : 64,396.06 = 13,348.70 : x
  2. Step 2: Convert to fraction form
    42,930.92/64,396.06 = 13,348.70/x
  3. Step 3: Cross multiply
    42,930.92x = 64,396.06 × 13,348.70
  4. Step 4: Simplify right side
    42,930.92x = 859,603,686.12
  5. Step 5: Solve for x
    x = 859,603,686.12/42,930.92
  6. Step 6: Final answer
    x = 20,022.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.