Home / 28,118.04-38,801.38-15,542.04

Finding the Fourth Proportional to 28,118.04, 38,801.38 and 15,542.04

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Solution

The fourth proportional to 28,118.04, 38,801.38 and 15,542.04 is: 21,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,118.04 : 38,801.38 = 15,542.04 : x
  2. Step 2: Convert to fraction form
    28,118.04/38,801.38 = 15,542.04/x
  3. Step 3: Cross multiply
    28,118.04x = 38,801.38 × 15,542.04
  4. Step 4: Simplify right side
    28,118.04x = 603,052,600.02
  5. Step 5: Solve for x
    x = 603,052,600.02/28,118.04
  6. Step 6: Final answer
    x = 21,447.18

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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.