Home / 20,294.21-30,441.32-13,280.13

Finding the Fourth Proportional to 20,294.21, 30,441.32 and 13,280.13

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Solution

The fourth proportional to 20,294.21, 30,441.32 and 13,280.13 is: 19,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.21 : 30,441.32 = 13,280.13 : x
  2. Step 2: Convert to fraction form
    20,294.21/30,441.32 = 13,280.13/x
  3. Step 3: Cross multiply
    20,294.21x = 30,441.32 × 13,280.13
  4. Step 4: Simplify right side
    20,294.21x = 404,264,620.57
  5. Step 5: Solve for x
    x = 404,264,620.57/20,294.21
  6. Step 6: Final answer
    x = 19,920.20

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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.