Home / 31,426.12-47,141.34-9,240.04

Finding the Fourth Proportional to 31,426.12, 47,141.34 and 9,240.04

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Solution

The fourth proportional to 31,426.12, 47,141.34 and 9,240.04 is: 13,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.12 : 47,141.34 = 9,240.04 : x
  2. Step 2: Convert to fraction form
    31,426.12/47,141.34 = 9,240.04/x
  3. Step 3: Cross multiply
    31,426.12x = 47,141.34 × 9,240.04
  4. Step 4: Simplify right side
    31,426.12x = 435,587,867.25
  5. Step 5: Solve for x
    x = 435,587,867.25/31,426.12
  6. Step 6: Final answer
    x = 13,860.70

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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.