Home / 23,749.04-32,751.96-20,390.78

Finding the Fourth Proportional to 23,749.04, 32,751.96 and 20,390.78

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Solution

The fourth proportional to 23,749.04, 32,751.96 and 20,390.78 is: 28,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,749.04 : 32,751.96 = 20,390.78 : x
  2. Step 2: Convert to fraction form
    23,749.04/32,751.96 = 20,390.78/x
  3. Step 3: Cross multiply
    23,749.04x = 32,751.96 × 20,390.78
  4. Step 4: Simplify right side
    23,749.04x = 667,838,010.93
  5. Step 5: Solve for x
    x = 667,838,010.93/23,749.04
  6. Step 6: Final answer
    x = 28,120.63

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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.