Home / 27,995.41-42,008.55-15,513.78

Finding the Fourth Proportional to 27,995.41, 42,008.55 and 15,513.78

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Solution

The fourth proportional to 27,995.41, 42,008.55 and 15,513.78 is: 23,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,995.41 : 42,008.55 = 15,513.78 : x
  2. Step 2: Convert to fraction form
    27,995.41/42,008.55 = 15,513.78/x
  3. Step 3: Cross multiply
    27,995.41x = 42,008.55 × 15,513.78
  4. Step 4: Simplify right side
    27,995.41x = 651,711,402.82
  5. Step 5: Solve for x
    x = 651,711,402.82/27,995.41
  6. Step 6: Final answer
    x = 23,279.22

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1.5x scale

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.