Home / 22,765.88-31,397.28-14,805.20

Finding the Fourth Proportional to 22,765.88, 31,397.28 and 14,805.20

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Solution

The fourth proportional to 22,765.88, 31,397.28 and 14,805.20 is: 20,418.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,765.88 : 31,397.28 = 14,805.20 : x
  2. Step 2: Convert to fraction form
    22,765.88/31,397.28 = 14,805.20/x
  3. Step 3: Cross multiply
    22,765.88x = 31,397.28 × 14,805.20
  4. Step 4: Simplify right side
    22,765.88x = 464,843,009.86
  5. Step 5: Solve for x
    x = 464,843,009.86/22,765.88
  6. Step 6: Final answer
    x = 20,418.41

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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.