Home / 25,728.13-38,529.91-17,808.46

Finding the Fourth Proportional to 25,728.13, 38,529.91 and 17,808.46

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Solution

The fourth proportional to 25,728.13, 38,529.91 and 17,808.46 is: 26,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.13 : 38,529.91 = 17,808.46 : x
  2. Step 2: Convert to fraction form
    25,728.13/38,529.91 = 17,808.46/x
  3. Step 3: Cross multiply
    25,728.13x = 38,529.91 × 17,808.46
  4. Step 4: Simplify right side
    25,728.13x = 686,158,286.97
  5. Step 5: Solve for x
    x = 686,158,286.97/25,728.13
  6. Step 6: Final answer
    x = 26,669.57

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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.