Home / 28,033.45-38,685.97-15,458.20

Finding the Fourth Proportional to 28,033.45, 38,685.97 and 15,458.20

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Solution

The fourth proportional to 28,033.45, 38,685.97 and 15,458.20 is: 21,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.45 : 38,685.97 = 15,458.20 : x
  2. Step 2: Convert to fraction form
    28,033.45/38,685.97 = 15,458.20/x
  3. Step 3: Cross multiply
    28,033.45x = 38,685.97 × 15,458.20
  4. Step 4: Simplify right side
    28,033.45x = 598,015,461.45
  5. Step 5: Solve for x
    x = 598,015,461.45/28,033.45
  6. Step 6: Final answer
    x = 21,332.21

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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.