Home / 26,879.95-40,309.80-8,154.51

Finding the Fourth Proportional to 26,879.95, 40,309.80 and 8,154.51

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Solution

The fourth proportional to 26,879.95, 40,309.80 and 8,154.51 is: 12,228.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.95 : 40,309.80 = 8,154.51 : x
  2. Step 2: Convert to fraction form
    26,879.95/40,309.80 = 8,154.51/x
  3. Step 3: Cross multiply
    26,879.95x = 40,309.80 × 8,154.51
  4. Step 4: Simplify right side
    26,879.95x = 328,706,667.20
  5. Step 5: Solve for x
    x = 328,706,667.20/26,879.95
  6. Step 6: Final answer
    x = 12,228.69

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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.