Home / 27,545.76-38,015.60-15,612.96

Finding the Fourth Proportional to 27,545.76, 38,015.60 and 15,612.96

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Solution

The fourth proportional to 27,545.76, 38,015.60 and 15,612.96 is: 21,547.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,545.76 : 38,015.60 = 15,612.96 : x
  2. Step 2: Convert to fraction form
    27,545.76/38,015.60 = 15,612.96/x
  3. Step 3: Cross multiply
    27,545.76x = 38,015.60 × 15,612.96
  4. Step 4: Simplify right side
    27,545.76x = 593,536,042.18
  5. Step 5: Solve for x
    x = 593,536,042.18/27,545.76
  6. Step 6: Final answer
    x = 21,547.27

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Half scale
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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.