Home / 31,617.60-47,428.92-9,430.56

Finding the Fourth Proportional to 31,617.60, 47,428.92 and 9,430.56

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Solution

The fourth proportional to 31,617.60, 47,428.92 and 9,430.56 is: 14,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.60 : 47,428.92 = 9,430.56 : x
  2. Step 2: Convert to fraction form
    31,617.60/47,428.92 = 9,430.56/x
  3. Step 3: Cross multiply
    31,617.60x = 47,428.92 × 9,430.56
  4. Step 4: Simplify right side
    31,617.60x = 447,281,275.80
  5. Step 5: Solve for x
    x = 447,281,275.80/31,617.60
  6. Step 6: Final answer
    x = 14,146.59

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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.