Home / 19,047.92-28,456.04-12,329.69

Finding the Fourth Proportional to 19,047.92, 28,456.04 and 12,329.69

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Solution

The fourth proportional to 19,047.92, 28,456.04 and 12,329.69 is: 18,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,047.92 : 28,456.04 = 12,329.69 : x
  2. Step 2: Convert to fraction form
    19,047.92/28,456.04 = 12,329.69/x
  3. Step 3: Cross multiply
    19,047.92x = 28,456.04 × 12,329.69
  4. Step 4: Simplify right side
    19,047.92x = 350,853,971.02
  5. Step 5: Solve for x
    x = 350,853,971.02/19,047.92
  6. Step 6: Final answer
    x = 18,419.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.