Home / 31,377.40-47,066.10-10,600.60

Finding the Fourth Proportional to 31,377.40, 47,066.10 and 10,600.60

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Solution

The fourth proportional to 31,377.40, 47,066.10 and 10,600.60 is: 15,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,377.40 : 47,066.10 = 10,600.60 : x
  2. Step 2: Convert to fraction form
    31,377.40/47,066.10 = 10,600.60/x
  3. Step 3: Cross multiply
    31,377.40x = 47,066.10 × 10,600.60
  4. Step 4: Simplify right side
    31,377.40x = 498,928,899.66
  5. Step 5: Solve for x
    x = 498,928,899.66/31,377.40
  6. Step 6: Final answer
    x = 15,900.90

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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.