Home / 22,888.88-31,591.56-13,939.28

Finding the Fourth Proportional to 22,888.88, 31,591.56 and 13,939.28

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Solution

The fourth proportional to 22,888.88, 31,591.56 and 13,939.28 is: 19,239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,888.88 : 31,591.56 = 13,939.28 : x
  2. Step 2: Convert to fraction form
    22,888.88/31,591.56 = 13,939.28/x
  3. Step 3: Cross multiply
    22,888.88x = 31,591.56 × 13,939.28
  4. Step 4: Simplify right side
    22,888.88x = 440,363,600.48
  5. Step 5: Solve for x
    x = 440,363,600.48/22,888.88
  6. Step 6: Final answer
    x = 19,239.19

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1.5x scale

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.