Home / 27,009.40-40,514.10-17,678.20

Finding the Fourth Proportional to 27,009.40, 40,514.10 and 17,678.20

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Solution

The fourth proportional to 27,009.40, 40,514.10 and 17,678.20 is: 26,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,009.40 : 40,514.10 = 17,678.20 : x
  2. Step 2: Convert to fraction form
    27,009.40/40,514.10 = 17,678.20/x
  3. Step 3: Cross multiply
    27,009.40x = 40,514.10 × 17,678.20
  4. Step 4: Simplify right side
    27,009.40x = 716,216,362.62
  5. Step 5: Solve for x
    x = 716,216,362.62/27,009.40
  6. Step 6: Final answer
    x = 26,517.30

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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.