Home / 28,344.80-39,116.18-15,599.45

Finding the Fourth Proportional to 28,344.80, 39,116.18 and 15,599.45

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Solution

The fourth proportional to 28,344.80, 39,116.18 and 15,599.45 is: 21,527.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.80 : 39,116.18 = 15,599.45 : x
  2. Step 2: Convert to fraction form
    28,344.80/39,116.18 = 15,599.45/x
  3. Step 3: Cross multiply
    28,344.80x = 39,116.18 × 15,599.45
  4. Step 4: Simplify right side
    28,344.80x = 610,190,894.10
  5. Step 5: Solve for x
    x = 610,190,894.10/28,344.80
  6. Step 6: Final answer
    x = 21,527.44

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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.