Home / 31,344.54-47,019.80-9,158.10

Finding the Fourth Proportional to 31,344.54, 47,019.80 and 9,158.10

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Solution

The fourth proportional to 31,344.54, 47,019.80 and 9,158.10 is: 13,738.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,344.54 : 47,019.80 = 9,158.10 : x
  2. Step 2: Convert to fraction form
    31,344.54/47,019.80 = 9,158.10/x
  3. Step 3: Cross multiply
    31,344.54x = 47,019.80 × 9,158.10
  4. Step 4: Simplify right side
    31,344.54x = 430,612,030.38
  5. Step 5: Solve for x
    x = 430,612,030.38/31,344.54
  6. Step 6: Final answer
    x = 13,738.02

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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.