Home / 22,917.12-31,627.56-12,845.40

Finding the Fourth Proportional to 22,917.12, 31,627.56 and 12,845.40

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Solution

The fourth proportional to 22,917.12, 31,627.56 and 12,845.40 is: 17,727.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,917.12 : 31,627.56 = 12,845.40 : x
  2. Step 2: Convert to fraction form
    22,917.12/31,627.56 = 12,845.40/x
  3. Step 3: Cross multiply
    22,917.12x = 31,627.56 × 12,845.40
  4. Step 4: Simplify right side
    22,917.12x = 406,268,659.22
  5. Step 5: Solve for x
    x = 406,268,659.22/22,917.12
  6. Step 6: Final answer
    x = 17,727.74

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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.