Home / 28,188.58-42,304.30-10,436.04

Finding the Fourth Proportional to 28,188.58, 42,304.30 and 10,436.04

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Solution

The fourth proportional to 28,188.58, 42,304.30 and 10,436.04 is: 15,661.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.58 : 42,304.30 = 10,436.04 : x
  2. Step 2: Convert to fraction form
    28,188.58/42,304.30 = 10,436.04/x
  3. Step 3: Cross multiply
    28,188.58x = 42,304.30 × 10,436.04
  4. Step 4: Simplify right side
    28,188.58x = 441,489,366.97
  5. Step 5: Solve for x
    x = 441,489,366.97/28,188.58
  6. Step 6: Final answer
    x = 15,661.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.