Home / 25,123.89-34,659.86-15,561.24

Finding the Fourth Proportional to 25,123.89, 34,659.86 and 15,561.24

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Solution

The fourth proportional to 25,123.89, 34,659.86 and 15,561.24 is: 21,467.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,123.89 : 34,659.86 = 15,561.24 : x
  2. Step 2: Convert to fraction form
    25,123.89/34,659.86 = 15,561.24/x
  3. Step 3: Cross multiply
    25,123.89x = 34,659.86 × 15,561.24
  4. Step 4: Simplify right side
    25,123.89x = 539,350,399.83
  5. Step 5: Solve for x
    x = 539,350,399.83/25,123.89
  6. Step 6: Final answer
    x = 21,467.63

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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.