Home / 28,708.74-39,613.25-15,961.56

Finding the Fourth Proportional to 28,708.74, 39,613.25 and 15,961.56

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Solution

The fourth proportional to 28,708.74, 39,613.25 and 15,961.56 is: 22,024.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.74 : 39,613.25 = 15,961.56 : x
  2. Step 2: Convert to fraction form
    28,708.74/39,613.25 = 15,961.56/x
  3. Step 3: Cross multiply
    28,708.74x = 39,613.25 × 15,961.56
  4. Step 4: Simplify right side
    28,708.74x = 632,289,186.86
  5. Step 5: Solve for x
    x = 632,289,186.86/28,708.74
  6. Step 6: Final answer
    x = 22,024.28

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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.