Home / 20,273.79-27,969.15-12,714.98

Finding the Fourth Proportional to 20,273.79, 27,969.15 and 12,714.98

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Solution

The fourth proportional to 20,273.79, 27,969.15 and 12,714.98 is: 17,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.79 : 27,969.15 = 12,714.98 : x
  2. Step 2: Convert to fraction form
    20,273.79/27,969.15 = 12,714.98/x
  3. Step 3: Cross multiply
    20,273.79x = 27,969.15 × 12,714.98
  4. Step 4: Simplify right side
    20,273.79x = 355,627,019.18
  5. Step 5: Solve for x
    x = 355,627,019.18/20,273.79
  6. Step 6: Final answer
    x = 17,541.22

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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.