Home / 40,108.96-60,144.72-15,129.76

Finding the Fourth Proportional to 40,108.96, 60,144.72 and 15,129.76

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Solution

The fourth proportional to 40,108.96, 60,144.72 and 15,129.76 is: 22,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,108.96 : 60,144.72 = 15,129.76 : x
  2. Step 2: Convert to fraction form
    40,108.96/60,144.72 = 15,129.76/x
  3. Step 3: Cross multiply
    40,108.96x = 60,144.72 × 15,129.76
  4. Step 4: Simplify right side
    40,108.96x = 909,975,178.87
  5. Step 5: Solve for x
    x = 909,975,178.87/40,108.96
  6. Step 6: Final answer
    x = 22,687.58

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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.