Home / 28,000.12-38,641.14-16,065.88

Finding the Fourth Proportional to 28,000.12, 38,641.14 and 16,065.88

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Solution

The fourth proportional to 28,000.12, 38,641.14 and 16,065.88 is: 22,171.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.12 : 38,641.14 = 16,065.88 : x
  2. Step 2: Convert to fraction form
    28,000.12/38,641.14 = 16,065.88/x
  3. Step 3: Cross multiply
    28,000.12x = 38,641.14 × 16,065.88
  4. Step 4: Simplify right side
    28,000.12x = 620,803,918.30
  5. Step 5: Solve for x
    x = 620,803,918.30/28,000.12
  6. Step 6: Final answer
    x = 22,171.47

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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.