Home / 26,779.66-40,117.21-12,719.68

Finding the Fourth Proportional to 26,779.66, 40,117.21 and 12,719.68

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Solution

The fourth proportional to 26,779.66, 40,117.21 and 12,719.68 is: 19,054.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,779.66 : 40,117.21 = 12,719.68 : x
  2. Step 2: Convert to fraction form
    26,779.66/40,117.21 = 12,719.68/x
  3. Step 3: Cross multiply
    26,779.66x = 40,117.21 × 12,719.68
  4. Step 4: Simplify right side
    26,779.66x = 510,278,073.69
  5. Step 5: Solve for x
    x = 510,278,073.69/26,779.66
  6. Step 6: Final answer
    x = 19,054.69

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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.