Home / 27,983.08-38,630.92-21,595.32

Finding the Fourth Proportional to 27,983.08, 38,630.92 and 21,595.32

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Solution

The fourth proportional to 27,983.08, 38,630.92 and 21,595.32 is: 29,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,983.08 : 38,630.92 = 21,595.32 : x
  2. Step 2: Convert to fraction form
    27,983.08/38,630.92 = 21,595.32/x
  3. Step 3: Cross multiply
    27,983.08x = 38,630.92 × 21,595.32
  4. Step 4: Simplify right side
    27,983.08x = 834,247,079.29
  5. Step 5: Solve for x
    x = 834,247,079.29/27,983.08
  6. Step 6: Final answer
    x = 29,812.55

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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.