Home / 35,812.95-53,719.42-13,621.20

Finding the Fourth Proportional to 35,812.95, 53,719.42 and 13,621.20

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Solution

The fourth proportional to 35,812.95, 53,719.42 and 13,621.20 is: 20,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,812.95 : 53,719.42 = 13,621.20 : x
  2. Step 2: Convert to fraction form
    35,812.95/53,719.42 = 13,621.20/x
  3. Step 3: Cross multiply
    35,812.95x = 53,719.42 × 13,621.20
  4. Step 4: Simplify right side
    35,812.95x = 731,722,661.05
  5. Step 5: Solve for x
    x = 731,722,661.05/35,812.95
  6. Step 6: Final answer
    x = 20,431.79

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Similar ratio
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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.