Home / 25,760.76-38,660.60-18,853.08

Finding the Fourth Proportional to 25,760.76, 38,660.60 and 18,853.08

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Solution

The fourth proportional to 25,760.76, 38,660.60 and 18,853.08 is: 28,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,760.76 : 38,660.60 = 18,853.08 : x
  2. Step 2: Convert to fraction form
    25,760.76/38,660.60 = 18,853.08/x
  3. Step 3: Cross multiply
    25,760.76x = 38,660.60 × 18,853.08
  4. Step 4: Simplify right side
    25,760.76x = 728,871,384.65
  5. Step 5: Solve for x
    x = 728,871,384.65/25,760.76
  6. Step 6: Final answer
    x = 28,293.86

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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.