Home / 25,708.30-35,472.06-15,091.78

Finding the Fourth Proportional to 25,708.30, 35,472.06 and 15,091.78

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Solution

The fourth proportional to 25,708.30, 35,472.06 and 15,091.78 is: 20,823.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,708.30 : 35,472.06 = 15,091.78 : x
  2. Step 2: Convert to fraction form
    25,708.30/35,472.06 = 15,091.78/x
  3. Step 3: Cross multiply
    25,708.30x = 35,472.06 × 15,091.78
  4. Step 4: Simplify right side
    25,708.30x = 535,336,525.67
  5. Step 5: Solve for x
    x = 535,336,525.67/25,708.30
  6. Step 6: Final answer
    x = 20,823.49

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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.