Home / 22,275.41-30,739.30-13,318.26

Finding the Fourth Proportional to 22,275.41, 30,739.30 and 13,318.26

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Solution

The fourth proportional to 22,275.41, 30,739.30 and 13,318.26 is: 18,378.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,275.41 : 30,739.30 = 13,318.26 : x
  2. Step 2: Convert to fraction form
    22,275.41/30,739.30 = 13,318.26/x
  3. Step 3: Cross multiply
    22,275.41x = 30,739.30 × 13,318.26
  4. Step 4: Simplify right side
    22,275.41x = 409,393,841.05
  5. Step 5: Solve for x
    x = 409,393,841.05/22,275.41
  6. Step 6: Final answer
    x = 18,378.74

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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.