Home / 22,279.02-30,744.12-13,321.23

Finding the Fourth Proportional to 22,279.02, 30,744.12 and 13,321.23

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Solution

The fourth proportional to 22,279.02, 30,744.12 and 13,321.23 is: 18,382.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.02 : 30,744.12 = 13,321.23 : x
  2. Step 2: Convert to fraction form
    22,279.02/30,744.12 = 13,321.23/x
  3. Step 3: Cross multiply
    22,279.02x = 30,744.12 × 13,321.23
  4. Step 4: Simplify right side
    22,279.02x = 409,549,493.67
  5. Step 5: Solve for x
    x = 409,549,493.67/22,279.02
  6. Step 6: Final answer
    x = 18,382.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.