Home / 20,242.02-27,951.60-12,701.28

Finding the Fourth Proportional to 20,242.02, 27,951.60 and 12,701.28

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Solution

The fourth proportional to 20,242.02, 27,951.60 and 12,701.28 is: 17,538.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,242.02 : 27,951.60 = 12,701.28 : x
  2. Step 2: Convert to fraction form
    20,242.02/27,951.60 = 12,701.28/x
  3. Step 3: Cross multiply
    20,242.02x = 27,951.60 × 12,701.28
  4. Step 4: Simplify right side
    20,242.02x = 355,021,098.05
  5. Step 5: Solve for x
    x = 355,021,098.05/20,242.02
  6. Step 6: Final answer
    x = 17,538.82

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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.