Home / 27,439.40-41,162.45-8,720.51

Finding the Fourth Proportional to 27,439.40, 41,162.45 and 8,720.51

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Solution

The fourth proportional to 27,439.40, 41,162.45 and 8,720.51 is: 13,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,439.40 : 41,162.45 = 8,720.51 : x
  2. Step 2: Convert to fraction form
    27,439.40/41,162.45 = 8,720.51/x
  3. Step 3: Cross multiply
    27,439.40x = 41,162.45 × 8,720.51
  4. Step 4: Simplify right side
    27,439.40x = 358,957,307.43
  5. Step 5: Solve for x
    x = 358,957,307.43/27,439.40
  6. Step 6: Final answer
    x = 13,081.82

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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.