Home / 31,871.38-47,603.18-28,864.93

Finding the Fourth Proportional to 31,871.38, 47,603.18 and 28,864.93

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Solution

The fourth proportional to 31,871.38, 47,603.18 and 28,864.93 is: 43,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,871.38 : 47,603.18 = 28,864.93 : x
  2. Step 2: Convert to fraction form
    31,871.38/47,603.18 = 28,864.93/x
  3. Step 3: Cross multiply
    31,871.38x = 47,603.18 × 28,864.93
  4. Step 4: Simplify right side
    31,871.38x = 1,374,062,458.48
  5. Step 5: Solve for x
    x = 1,374,062,458.48/31,871.38
  6. Step 6: Final answer
    x = 43,112.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.