Home / 27,008.30-40,439.55-21,176.30

Finding the Fourth Proportional to 27,008.30, 40,439.55 and 21,176.30

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Solution

The fourth proportional to 27,008.30, 40,439.55 and 21,176.30 is: 31,707.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,008.30 : 40,439.55 = 21,176.30 : x
  2. Step 2: Convert to fraction form
    27,008.30/40,439.55 = 21,176.30/x
  3. Step 3: Cross multiply
    27,008.30x = 40,439.55 × 21,176.30
  4. Step 4: Simplify right side
    27,008.30x = 856,360,042.67
  5. Step 5: Solve for x
    x = 856,360,042.67/27,008.30
  6. Step 6: Final answer
    x = 31,707.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.