Home / 25,502.40-38,221.02-20,574.36

Finding the Fourth Proportional to 25,502.40, 38,221.02 and 20,574.36

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Solution

The fourth proportional to 25,502.40, 38,221.02 and 20,574.36 is: 30,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,502.40 : 38,221.02 = 20,574.36 : x
  2. Step 2: Convert to fraction form
    25,502.40/38,221.02 = 20,574.36/x
  3. Step 3: Cross multiply
    25,502.40x = 38,221.02 × 20,574.36
  4. Step 4: Simplify right side
    25,502.40x = 786,373,025.05
  5. Step 5: Solve for x
    x = 786,373,025.05/25,502.40
  6. Step 6: Final answer
    x = 30,835.26

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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.