Home / 28,620.40-39,497.88-16,047.04

Finding the Fourth Proportional to 28,620.40, 39,497.88 and 16,047.04

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Solution

The fourth proportional to 28,620.40, 39,497.88 and 16,047.04 is: 22,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.40 : 39,497.88 = 16,047.04 : x
  2. Step 2: Convert to fraction form
    28,620.40/39,497.88 = 16,047.04/x
  3. Step 3: Cross multiply
    28,620.40x = 39,497.88 × 16,047.04
  4. Step 4: Simplify right side
    28,620.40x = 633,824,060.28
  5. Step 5: Solve for x
    x = 633,824,060.28/28,620.40
  6. Step 6: Final answer
    x = 22,145.88

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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.