Home / 26,939.16-40,408.66-12,130.74

Finding the Fourth Proportional to 26,939.16, 40,408.66 and 12,130.74

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Solution

The fourth proportional to 26,939.16, 40,408.66 and 12,130.74 is: 18,196.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,939.16 : 40,408.66 = 12,130.74 : x
  2. Step 2: Convert to fraction form
    26,939.16/40,408.66 = 12,130.74/x
  3. Step 3: Cross multiply
    26,939.16x = 40,408.66 × 12,130.74
  4. Step 4: Simplify right side
    26,939.16x = 490,186,948.21
  5. Step 5: Solve for x
    x = 490,186,948.21/26,939.16
  6. Step 6: Final answer
    x = 18,196.07

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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.