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Finding the Fourth Proportional to 27,239.58, 40,859.40 and 8,519.71

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Solution

The fourth proportional to 27,239.58, 40,859.40 and 8,519.71 is: 12,779.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,239.58 : 40,859.40 = 8,519.71 : x
  2. Step 2: Convert to fraction form
    27,239.58/40,859.40 = 8,519.71/x
  3. Step 3: Cross multiply
    27,239.58x = 40,859.40 × 8,519.71
  4. Step 4: Simplify right side
    27,239.58x = 348,110,238.77
  5. Step 5: Solve for x
    x = 348,110,238.77/27,239.58
  6. Step 6: Final answer
    x = 12,779.57

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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.