Home / 22,207.60-30,646.48-12,775.52

Finding the Fourth Proportional to 22,207.60, 30,646.48 and 12,775.52

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Solution

The fourth proportional to 22,207.60, 30,646.48 and 12,775.52 is: 17,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.60 : 30,646.48 = 12,775.52 : x
  2. Step 2: Convert to fraction form
    22,207.60/30,646.48 = 12,775.52/x
  3. Step 3: Cross multiply
    22,207.60x = 30,646.48 × 12,775.52
  4. Step 4: Simplify right side
    22,207.60x = 391,524,718.17
  5. Step 5: Solve for x
    x = 391,524,718.17/22,207.60
  6. Step 6: Final answer
    x = 17,630.21

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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.