Home / 20,875.49-28,810.17-11,924.33

Finding the Fourth Proportional to 20,875.49, 28,810.17 and 11,924.33

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Solution

The fourth proportional to 20,875.49, 28,810.17 and 11,924.33 is: 16,456.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.49 : 28,810.17 = 11,924.33 : x
  2. Step 2: Convert to fraction form
    20,875.49/28,810.17 = 11,924.33/x
  3. Step 3: Cross multiply
    20,875.49x = 28,810.17 × 11,924.33
  4. Step 4: Simplify right side
    20,875.49x = 343,541,770.76
  5. Step 5: Solve for x
    x = 343,541,770.76/20,875.49
  6. Step 6: Final answer
    x = 16,456.71

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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.