Home / 40,212.30-60,318.45-13,908.30

Finding the Fourth Proportional to 40,212.30, 60,318.45 and 13,908.30

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Solution

The fourth proportional to 40,212.30, 60,318.45 and 13,908.30 is: 20,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,212.30 : 60,318.45 = 13,908.30 : x
  2. Step 2: Convert to fraction form
    40,212.30/60,318.45 = 13,908.30/x
  3. Step 3: Cross multiply
    40,212.30x = 60,318.45 × 13,908.30
  4. Step 4: Simplify right side
    40,212.30x = 838,927,098.14
  5. Step 5: Solve for x
    x = 838,927,098.14/40,212.30
  6. Step 6: Final answer
    x = 20,862.45

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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.