Home / 22,629.16-31,221.86-14,671.72

Finding the Fourth Proportional to 22,629.16, 31,221.86 and 14,671.72

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Solution

The fourth proportional to 22,629.16, 31,221.86 and 14,671.72 is: 20,242.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,629.16 : 31,221.86 = 14,671.72 : x
  2. Step 2: Convert to fraction form
    22,629.16/31,221.86 = 14,671.72/x
  3. Step 3: Cross multiply
    22,629.16x = 31,221.86 × 14,671.72
  4. Step 4: Simplify right side
    22,629.16x = 458,078,387.80
  5. Step 5: Solve for x
    x = 458,078,387.80/22,629.16
  6. Step 6: Final answer
    x = 20,242.84

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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.