Home / 28,526.96-39,372.20-15,949.36

Finding the Fourth Proportional to 28,526.96, 39,372.20 and 15,949.36

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Solution

The fourth proportional to 28,526.96, 39,372.20 and 15,949.36 is: 22,012.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.96 : 39,372.20 = 15,949.36 : x
  2. Step 2: Convert to fraction form
    28,526.96/39,372.20 = 15,949.36/x
  3. Step 3: Cross multiply
    28,526.96x = 39,372.20 × 15,949.36
  4. Step 4: Simplify right side
    28,526.96x = 627,961,391.79
  5. Step 5: Solve for x
    x = 627,961,391.79/28,526.96
  6. Step 6: Final answer
    x = 22,012.91

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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.