Home / 40,499.40-60,749.10-12,419.24

Finding the Fourth Proportional to 40,499.40, 60,749.10 and 12,419.24

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Solution

The fourth proportional to 40,499.40, 60,749.10 and 12,419.24 is: 18,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,499.40 : 60,749.10 = 12,419.24 : x
  2. Step 2: Convert to fraction form
    40,499.40/60,749.10 = 12,419.24/x
  3. Step 3: Cross multiply
    40,499.40x = 60,749.10 × 12,419.24
  4. Step 4: Simplify right side
    40,499.40x = 754,457,348.94
  5. Step 5: Solve for x
    x = 754,457,348.94/40,499.40
  6. Step 6: Final answer
    x = 18,628.85

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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.