Home / 25,708.78-35,478.30-15,098.59

Finding the Fourth Proportional to 25,708.78, 35,478.30 and 15,098.59

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Solution

The fourth proportional to 25,708.78, 35,478.30 and 15,098.59 is: 20,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,708.78 : 35,478.30 = 15,098.59 : x
  2. Step 2: Convert to fraction form
    25,708.78/35,478.30 = 15,098.59/x
  3. Step 3: Cross multiply
    25,708.78x = 35,478.30 × 15,098.59
  4. Step 4: Simplify right side
    25,708.78x = 535,672,305.60
  5. Step 5: Solve for x
    x = 535,672,305.60/25,708.78
  6. Step 6: Final answer
    x = 20,836.16

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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.