Home / 28,344.80-39,118.38-15,600.53

Finding the Fourth Proportional to 28,344.80, 39,118.38 and 15,600.53

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Solution

The fourth proportional to 28,344.80, 39,118.38 and 15,600.53 is: 21,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.80 : 39,118.38 = 15,600.53 : x
  2. Step 2: Convert to fraction form
    28,344.80/39,118.38 = 15,600.53/x
  3. Step 3: Cross multiply
    28,344.80x = 39,118.38 × 15,600.53
  4. Step 4: Simplify right side
    28,344.80x = 610,267,460.74
  5. Step 5: Solve for x
    x = 610,267,460.74/28,344.80
  6. Step 6: Final answer
    x = 21,530.14

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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.