Home / 20,437.48-30,658.38-8,747.56

Finding the Fourth Proportional to 20,437.48, 30,658.38 and 8,747.56

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Solution

The fourth proportional to 20,437.48, 30,658.38 and 8,747.56 is: 13,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,437.48 : 30,658.38 = 8,747.56 : x
  2. Step 2: Convert to fraction form
    20,437.48/30,658.38 = 8,747.56/x
  3. Step 3: Cross multiply
    20,437.48x = 30,658.38 × 8,747.56
  4. Step 4: Simplify right side
    20,437.48x = 268,186,018.55
  5. Step 5: Solve for x
    x = 268,186,018.55/20,437.48
  6. Step 6: Final answer
    x = 13,122.26

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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.