Home / 20,230.89-30,352.29-10,377.06

Finding the Fourth Proportional to 20,230.89, 30,352.29 and 10,377.06

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Solution

The fourth proportional to 20,230.89, 30,352.29 and 10,377.06 is: 15,568.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.89 : 30,352.29 = 10,377.06 : x
  2. Step 2: Convert to fraction form
    20,230.89/30,352.29 = 10,377.06/x
  3. Step 3: Cross multiply
    20,230.89x = 30,352.29 × 10,377.06
  4. Step 4: Simplify right side
    20,230.89x = 314,967,534.47
  5. Step 5: Solve for x
    x = 314,967,534.47/20,230.89
  6. Step 6: Final answer
    x = 15,568.64

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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.