Home / 47,961.16-71,931.66-12,901.12

Finding the Fourth Proportional to 47,961.16, 71,931.66 and 12,901.12

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Solution

The fourth proportional to 47,961.16, 71,931.66 and 12,901.12 is: 19,348.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,961.16 : 71,931.66 = 12,901.12 : x
  2. Step 2: Convert to fraction form
    47,961.16/71,931.66 = 12,901.12/x
  3. Step 3: Cross multiply
    47,961.16x = 71,931.66 × 12,901.12
  4. Step 4: Simplify right side
    47,961.16x = 927,998,977.46
  5. Step 5: Solve for x
    x = 927,998,977.46/47,961.16
  6. Step 6: Final answer
    x = 19,348.97

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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.