Home / 40,505.21-60,759.63-12,423.22

Finding the Fourth Proportional to 40,505.21, 60,759.63 and 12,423.22

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Solution

The fourth proportional to 40,505.21, 60,759.63 and 12,423.22 is: 18,635.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,505.21 : 60,759.63 = 12,423.22 : x
  2. Step 2: Convert to fraction form
    40,505.21/60,759.63 = 12,423.22/x
  3. Step 3: Cross multiply
    40,505.21x = 60,759.63 × 12,423.22
  4. Step 4: Simplify right side
    40,505.21x = 754,829,946.81
  5. Step 5: Solve for x
    x = 754,829,946.81/40,505.21
  6. Step 6: Final answer
    x = 18,635.38

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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.