Home / 16,200.39-22,210.74-15,905.15

Finding the Fourth Proportional to 16,200.39, 22,210.74 and 15,905.15

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Solution

The fourth proportional to 16,200.39, 22,210.74 and 15,905.15 is: 21,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,200.39 : 22,210.74 = 15,905.15 : x
  2. Step 2: Convert to fraction form
    16,200.39/22,210.74 = 15,905.15/x
  3. Step 3: Cross multiply
    16,200.39x = 22,210.74 × 15,905.15
  4. Step 4: Simplify right side
    16,200.39x = 353,264,960.73
  5. Step 5: Solve for x
    x = 353,264,960.73/16,200.39
  6. Step 6: Final answer
    x = 21,805.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.