Home / 31,781.48-47,723.12-26,222.72

Finding the Fourth Proportional to 31,781.48, 47,723.12 and 26,222.72

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Solution

The fourth proportional to 31,781.48, 47,723.12 and 26,222.72 is: 39,376.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.48 : 47,723.12 = 26,222.72 : x
  2. Step 2: Convert to fraction form
    31,781.48/47,723.12 = 26,222.72/x
  3. Step 3: Cross multiply
    31,781.48x = 47,723.12 × 26,222.72
  4. Step 4: Simplify right side
    31,781.48x = 1,251,430,013.29
  5. Step 5: Solve for x
    x = 1,251,430,013.29/31,781.48
  6. Step 6: Final answer
    x = 39,376.08

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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.