Home / 22,805.13-31,455.24-15,635.69

Finding the Fourth Proportional to 22,805.13, 31,455.24 and 15,635.69

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Solution

The fourth proportional to 22,805.13, 31,455.24 and 15,635.69 is: 21,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,805.13 : 31,455.24 = 15,635.69 : x
  2. Step 2: Convert to fraction form
    22,805.13/31,455.24 = 15,635.69/x
  3. Step 3: Cross multiply
    22,805.13x = 31,455.24 × 15,635.69
  4. Step 4: Simplify right side
    22,805.13x = 491,824,460.15
  5. Step 5: Solve for x
    x = 491,824,460.15/22,805.13
  6. Step 6: Final answer
    x = 21,566.40

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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.