Home / 40,122.64-60,147.10-13,821.13

Finding the Fourth Proportional to 40,122.64, 60,147.10 and 13,821.13

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Solution

The fourth proportional to 40,122.64, 60,147.10 and 13,821.13 is: 20,719.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.64 : 60,147.10 = 13,821.13 : x
  2. Step 2: Convert to fraction form
    40,122.64/60,147.10 = 13,821.13/x
  3. Step 3: Cross multiply
    40,122.64x = 60,147.10 × 13,821.13
  4. Step 4: Simplify right side
    40,122.64x = 831,300,888.22
  5. Step 5: Solve for x
    x = 831,300,888.22/40,122.64
  6. Step 6: Final answer
    x = 20,719.00

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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.