Home / 20,610.57-28,425.04-15,842.06

Finding the Fourth Proportional to 20,610.57, 28,425.04 and 15,842.06

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Solution

The fourth proportional to 20,610.57, 28,425.04 and 15,842.06 is: 21,848.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,610.57 : 28,425.04 = 15,842.06 : x
  2. Step 2: Convert to fraction form
    20,610.57/28,425.04 = 15,842.06/x
  3. Step 3: Cross multiply
    20,610.57x = 28,425.04 × 15,842.06
  4. Step 4: Simplify right side
    20,610.57x = 450,311,363.05
  5. Step 5: Solve for x
    x = 450,311,363.05/20,610.57
  6. Step 6: Final answer
    x = 21,848.57

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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.