Home / 27,005.76-40,451.04-20,358.72

Finding the Fourth Proportional to 27,005.76, 40,451.04 and 20,358.72

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Solution

The fourth proportional to 27,005.76, 40,451.04 and 20,358.72 is: 30,494.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,005.76 : 40,451.04 = 20,358.72 : x
  2. Step 2: Convert to fraction form
    27,005.76/40,451.04 = 20,358.72/x
  3. Step 3: Cross multiply
    27,005.76x = 40,451.04 × 20,358.72
  4. Step 4: Simplify right side
    27,005.76x = 823,531,397.07
  5. Step 5: Solve for x
    x = 823,531,397.07/27,005.76
  6. Step 6: Final answer
    x = 30,494.66

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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.