Home / 40,140.96-60,220.26-13,486

Finding the Fourth Proportional to 40,140.96, 60,220.26 and 13,486

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Solution

The fourth proportional to 40,140.96, 60,220.26 and 13,486 is: 20,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,140.96 : 60,220.26 = 13,486 : x
  2. Step 2: Convert to fraction form
    40,140.96/60,220.26 = 13,486/x
  3. Step 3: Cross multiply
    40,140.96x = 60,220.26 × 13,486
  4. Step 4: Simplify right side
    40,140.96x = 812,130,426.36
  5. Step 5: Solve for x
    x = 812,130,426.36/40,140.96
  6. Step 6: Final answer
    x = 20,231.96

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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.