Home / 22,276.41-30,740.68-13,319.26

Finding the Fourth Proportional to 22,276.41, 30,740.68 and 13,319.26

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Solution

The fourth proportional to 22,276.41, 30,740.68 and 13,319.26 is: 18,380.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,276.41 : 30,740.68 = 13,319.26 : x
  2. Step 2: Convert to fraction form
    22,276.41/30,740.68 = 13,319.26/x
  3. Step 3: Cross multiply
    22,276.41x = 30,740.68 × 13,319.26
  4. Step 4: Simplify right side
    22,276.41x = 409,443,109.50
  5. Step 5: Solve for x
    x = 409,443,109.50/22,276.41
  6. Step 6: Final answer
    x = 18,380.12

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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.