Home / 28,691.01-39,595.64-16,115.76

Finding the Fourth Proportional to 28,691.01, 39,595.64 and 16,115.76

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Solution

The fourth proportional to 28,691.01, 39,595.64 and 16,115.76 is: 22,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.01 : 39,595.64 = 16,115.76 : x
  2. Step 2: Convert to fraction form
    28,691.01/39,595.64 = 16,115.76/x
  3. Step 3: Cross multiply
    28,691.01x = 39,595.64 × 16,115.76
  4. Step 4: Simplify right side
    28,691.01x = 638,113,750.71
  5. Step 5: Solve for x
    x = 638,113,750.71/28,691.01
  6. Step 6: Final answer
    x = 22,240.90

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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.