Home / 31,052.25-42,881.27-21,646.89

Finding the Fourth Proportional to 31,052.25, 42,881.27 and 21,646.89

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Solution

The fourth proportional to 31,052.25, 42,881.27 and 21,646.89 is: 29,893.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,052.25 : 42,881.27 = 21,646.89 : x
  2. Step 2: Convert to fraction form
    31,052.25/42,881.27 = 21,646.89/x
  3. Step 3: Cross multiply
    31,052.25x = 42,881.27 × 21,646.89
  4. Step 4: Simplify right side
    31,052.25x = 928,246,026.52
  5. Step 5: Solve for x
    x = 928,246,026.52/31,052.25
  6. Step 6: Final answer
    x = 29,893.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.