Home / 26,723.40-40,085.10-12,899.40

Finding the Fourth Proportional to 26,723.40, 40,085.10 and 12,899.40

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Solution

The fourth proportional to 26,723.40, 40,085.10 and 12,899.40 is: 19,349.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,723.40 : 40,085.10 = 12,899.40 : x
  2. Step 2: Convert to fraction form
    26,723.40/40,085.10 = 12,899.40/x
  3. Step 3: Cross multiply
    26,723.40x = 40,085.10 × 12,899.40
  4. Step 4: Simplify right side
    26,723.40x = 517,073,738.94
  5. Step 5: Solve for x
    x = 517,073,738.94/26,723.40
  6. Step 6: Final answer
    x = 19,349.10

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Similar ratio
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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.