Home / 20,371.13-30,570.25-8,373.12

Finding the Fourth Proportional to 20,371.13, 30,570.25 and 8,373.12

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Solution

The fourth proportional to 20,371.13, 30,570.25 and 8,373.12 is: 12,565.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.13 : 30,570.25 = 8,373.12 : x
  2. Step 2: Convert to fraction form
    20,371.13/30,570.25 = 8,373.12/x
  3. Step 3: Cross multiply
    20,371.13x = 30,570.25 × 8,373.12
  4. Step 4: Simplify right side
    20,371.13x = 255,968,371.68
  5. Step 5: Solve for x
    x = 255,968,371.68/20,371.13
  6. Step 6: Final answer
    x = 12,565.25

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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.