Home / 25,729.92-38,601.27-18,315.99

Finding the Fourth Proportional to 25,729.92, 38,601.27 and 18,315.99

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Solution

The fourth proportional to 25,729.92, 38,601.27 and 18,315.99 is: 27,478.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.92 : 38,601.27 = 18,315.99 : x
  2. Step 2: Convert to fraction form
    25,729.92/38,601.27 = 18,315.99/x
  3. Step 3: Cross multiply
    25,729.92x = 38,601.27 × 18,315.99
  4. Step 4: Simplify right side
    25,729.92x = 707,020,475.31
  5. Step 5: Solve for x
    x = 707,020,475.31/25,729.92
  6. Step 6: Final answer
    x = 27,478.53

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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.