Home / 25,560.34-35,274.88-15,489.66

Finding the Fourth Proportional to 25,560.34, 35,274.88 and 15,489.66

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Solution

The fourth proportional to 25,560.34, 35,274.88 and 15,489.66 is: 21,376.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,560.34 : 35,274.88 = 15,489.66 : x
  2. Step 2: Convert to fraction form
    25,560.34/35,274.88 = 15,489.66/x
  3. Step 3: Cross multiply
    25,560.34x = 35,274.88 × 15,489.66
  4. Step 4: Simplify right side
    25,560.34x = 546,395,897.74
  5. Step 5: Solve for x
    x = 546,395,897.74/25,560.34
  6. Step 6: Final answer
    x = 21,376.71

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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.