Home / 47,318.47-70,977.70-12,258.13

Finding the Fourth Proportional to 47,318.47, 70,977.70 and 12,258.13

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Solution

The fourth proportional to 47,318.47, 70,977.70 and 12,258.13 is: 18,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,318.47 : 70,977.70 = 12,258.13 : x
  2. Step 2: Convert to fraction form
    47,318.47/70,977.70 = 12,258.13/x
  3. Step 3: Cross multiply
    47,318.47x = 70,977.70 × 12,258.13
  4. Step 4: Simplify right side
    47,318.47x = 870,053,873.70
  5. Step 5: Solve for x
    x = 870,053,873.70/47,318.47
  6. Step 6: Final answer
    x = 18,387.19

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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.