Home / 31,909.05-47,881.80-22,055.40

Finding the Fourth Proportional to 31,909.05, 47,881.80 and 22,055.40

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Solution

The fourth proportional to 31,909.05, 47,881.80 and 22,055.40 is: 33,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,909.05 : 47,881.80 = 22,055.40 : x
  2. Step 2: Convert to fraction form
    31,909.05/47,881.80 = 22,055.40/x
  3. Step 3: Cross multiply
    31,909.05x = 47,881.80 × 22,055.40
  4. Step 4: Simplify right side
    31,909.05x = 1,056,052,251.72
  5. Step 5: Solve for x
    x = 1,056,052,251.72/31,909.05
  6. Step 6: Final answer
    x = 33,095.70

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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.