Home / 22,165.56-30,588.16-12,734.20

Finding the Fourth Proportional to 22,165.56, 30,588.16 and 12,734.20

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Solution

The fourth proportional to 22,165.56, 30,588.16 and 12,734.20 is: 17,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,165.56 : 30,588.16 = 12,734.20 : x
  2. Step 2: Convert to fraction form
    22,165.56/30,588.16 = 12,734.20/x
  3. Step 3: Cross multiply
    22,165.56x = 30,588.16 × 12,734.20
  4. Step 4: Simplify right side
    22,165.56x = 389,515,747.07
  5. Step 5: Solve for x
    x = 389,515,747.07/22,165.56
  6. Step 6: Final answer
    x = 17,573.02

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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.