Home / 26,934.12-40,368.38-12,139.07

Finding the Fourth Proportional to 26,934.12, 40,368.38 and 12,139.07

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Solution

The fourth proportional to 26,934.12, 40,368.38 and 12,139.07 is: 18,193.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,934.12 : 40,368.38 = 12,139.07 : x
  2. Step 2: Convert to fraction form
    26,934.12/40,368.38 = 12,139.07/x
  3. Step 3: Cross multiply
    26,934.12x = 40,368.38 × 12,139.07
  4. Step 4: Simplify right side
    26,934.12x = 490,034,328.07
  5. Step 5: Solve for x
    x = 490,034,328.07/26,934.12
  6. Step 6: Final answer
    x = 18,193.81

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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.