Home / 28,013.76-38,652.24-18,452.64

Finding the Fourth Proportional to 28,013.76, 38,652.24 and 18,452.64

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Solution

The fourth proportional to 28,013.76, 38,652.24 and 18,452.64 is: 25,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.76 : 38,652.24 = 18,452.64 : x
  2. Step 2: Convert to fraction form
    28,013.76/38,652.24 = 18,452.64/x
  3. Step 3: Cross multiply
    28,013.76x = 38,652.24 × 18,452.64
  4. Step 4: Simplify right side
    28,013.76x = 713,235,869.91
  5. Step 5: Solve for x
    x = 713,235,869.91/28,013.76
  6. Step 6: Final answer
    x = 25,460.20

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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.