Home / 28,221.03-38,945.12-15,474.41

Finding the Fourth Proportional to 28,221.03, 38,945.12 and 15,474.41

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Solution

The fourth proportional to 28,221.03, 38,945.12 and 15,474.41 is: 21,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.03 : 38,945.12 = 15,474.41 : x
  2. Step 2: Convert to fraction form
    28,221.03/38,945.12 = 15,474.41/x
  3. Step 3: Cross multiply
    28,221.03x = 38,945.12 × 15,474.41
  4. Step 4: Simplify right side
    28,221.03x = 602,652,754.38
  5. Step 5: Solve for x
    x = 602,652,754.38/28,221.03
  6. Step 6: Final answer
    x = 21,354.74

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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.