Home / 28,069.38-38,735.01-15,493.86

Finding the Fourth Proportional to 28,069.38, 38,735.01 and 15,493.86

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Solution

The fourth proportional to 28,069.38, 38,735.01 and 15,493.86 is: 21,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.38 : 38,735.01 = 15,493.86 : x
  2. Step 2: Convert to fraction form
    28,069.38/38,735.01 = 15,493.86/x
  3. Step 3: Cross multiply
    28,069.38x = 38,735.01 × 15,493.86
  4. Step 4: Simplify right side
    28,069.38x = 600,154,822.04
  5. Step 5: Solve for x
    x = 600,154,822.04/28,069.38
  6. Step 6: Final answer
    x = 21,381.12

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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.