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Finding the Fourth Proportional to 40,301.70, 60,438.15 and 18,125.70

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Solution

The fourth proportional to 40,301.70, 60,438.15 and 18,125.70 is: 27,182.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,301.70 : 60,438.15 = 18,125.70 : x
  2. Step 2: Convert to fraction form
    40,301.70/60,438.15 = 18,125.70/x
  3. Step 3: Cross multiply
    40,301.70x = 60,438.15 × 18,125.70
  4. Step 4: Simplify right side
    40,301.70x = 1,095,483,775.46
  5. Step 5: Solve for x
    x = 1,095,483,775.46/40,301.70
  6. Step 6: Final answer
    x = 27,182.07

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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.