Home / 20,347.96-28,068.72-11,849.08

Finding the Fourth Proportional to 20,347.96, 28,068.72 and 11,849.08

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Solution

The fourth proportional to 20,347.96, 28,068.72 and 11,849.08 is: 16,345.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347.96 : 28,068.72 = 11,849.08 : x
  2. Step 2: Convert to fraction form
    20,347.96/28,068.72 = 11,849.08/x
  3. Step 3: Cross multiply
    20,347.96x = 28,068.72 × 11,849.08
  4. Step 4: Simplify right side
    20,347.96x = 332,588,508.78
  5. Step 5: Solve for x
    x = 332,588,508.78/20,347.96
  6. Step 6: Final answer
    x = 16,345.05

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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.