Home / 18,301.90-25,237.63-15,658.06

Finding the Fourth Proportional to 18,301.90, 25,237.63 and 15,658.06

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Solution

The fourth proportional to 18,301.90, 25,237.63 and 15,658.06 is: 21,591.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301.90 : 25,237.63 = 15,658.06 : x
  2. Step 2: Convert to fraction form
    18,301.90/25,237.63 = 15,658.06/x
  3. Step 3: Cross multiply
    18,301.90x = 25,237.63 × 15,658.06
  4. Step 4: Simplify right side
    18,301.90x = 395,172,324.80
  5. Step 5: Solve for x
    x = 395,172,324.80/18,301.90
  6. Step 6: Final answer
    x = 21,591.87

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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.