Home / 27,731.54-38,269.59-15,157.10

Finding the Fourth Proportional to 27,731.54, 38,269.59 and 15,157.10

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Solution

The fourth proportional to 27,731.54, 38,269.59 and 15,157.10 is: 20,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,731.54 : 38,269.59 = 15,157.10 : x
  2. Step 2: Convert to fraction form
    27,731.54/38,269.59 = 15,157.10/x
  3. Step 3: Cross multiply
    27,731.54x = 38,269.59 × 15,157.10
  4. Step 4: Simplify right side
    27,731.54x = 580,056,002.59
  5. Step 5: Solve for x
    x = 580,056,002.59/27,731.54
  6. Step 6: Final answer
    x = 20,916.83

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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.