Home / 20,654.83-28,508.85-11,707.67

Finding the Fourth Proportional to 20,654.83, 28,508.85 and 11,707.67

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Solution

The fourth proportional to 20,654.83, 28,508.85 and 11,707.67 is: 16,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.83 : 28,508.85 = 11,707.67 : x
  2. Step 2: Convert to fraction form
    20,654.83/28,508.85 = 11,707.67/x
  3. Step 3: Cross multiply
    20,654.83x = 28,508.85 × 11,707.67
  4. Step 4: Simplify right side
    20,654.83x = 333,772,006.80
  5. Step 5: Solve for x
    x = 333,772,006.80/20,654.83
  6. Step 6: Final answer
    x = 16,159.52

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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.