Home / 20,358.13-28,095.84-11,976.25

Finding the Fourth Proportional to 20,358.13, 28,095.84 and 11,976.25

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Solution

The fourth proportional to 20,358.13, 28,095.84 and 11,976.25 is: 16,528.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.13 : 28,095.84 = 11,976.25 : x
  2. Step 2: Convert to fraction form
    20,358.13/28,095.84 = 11,976.25/x
  3. Step 3: Cross multiply
    20,358.13x = 28,095.84 × 11,976.25
  4. Step 4: Simplify right side
    20,358.13x = 336,482,663.32
  5. Step 5: Solve for x
    x = 336,482,663.32/20,358.13
  6. Step 6: Final answer
    x = 16,528.18

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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.