Home / 28,294.38-39,048.57-18,243.74

Finding the Fourth Proportional to 28,294.38, 39,048.57 and 18,243.74

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Solution

The fourth proportional to 28,294.38, 39,048.57 and 18,243.74 is: 25,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.38 : 39,048.57 = 18,243.74 : x
  2. Step 2: Convert to fraction form
    28,294.38/39,048.57 = 18,243.74/x
  3. Step 3: Cross multiply
    28,294.38x = 39,048.57 × 18,243.74
  4. Step 4: Simplify right side
    28,294.38x = 712,392,056.07
  5. Step 5: Solve for x
    x = 712,392,056.07/28,294.38
  6. Step 6: Final answer
    x = 25,177.86

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Double scale
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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.