Home / 40,121.01-60,141.42-13,807.80

Finding the Fourth Proportional to 40,121.01, 60,141.42 and 13,807.80

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Solution

The fourth proportional to 40,121.01, 60,141.42 and 13,807.80 is: 20,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.01 : 60,141.42 = 13,807.80 : x
  2. Step 2: Convert to fraction form
    40,121.01/60,141.42 = 13,807.80/x
  3. Step 3: Cross multiply
    40,121.01x = 60,141.42 × 13,807.80
  4. Step 4: Simplify right side
    40,121.01x = 830,420,699.08
  5. Step 5: Solve for x
    x = 830,420,699.08/40,121.01
  6. Step 6: Final answer
    x = 20,697.90

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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.