Home / 47,535.70-71,298.06-12,478.10

Finding the Fourth Proportional to 47,535.70, 71,298.06 and 12,478.10

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Solution

The fourth proportional to 47,535.70, 71,298.06 and 12,478.10 is: 18,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,535.70 : 71,298.06 = 12,478.10 : x
  2. Step 2: Convert to fraction form
    47,535.70/71,298.06 = 12,478.10/x
  3. Step 3: Cross multiply
    47,535.70x = 71,298.06 × 12,478.10
  4. Step 4: Simplify right side
    47,535.70x = 889,664,322.49
  5. Step 5: Solve for x
    x = 889,664,322.49/47,535.70
  6. Step 6: Final answer
    x = 18,715.71

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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.