Home / 26,431.81-39,625.50-12,384.43

Finding the Fourth Proportional to 26,431.81, 39,625.50 and 12,384.43

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Solution

The fourth proportional to 26,431.81, 39,625.50 and 12,384.43 is: 18,566.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.81 : 39,625.50 = 12,384.43 : x
  2. Step 2: Convert to fraction form
    26,431.81/39,625.50 = 12,384.43/x
  3. Step 3: Cross multiply
    26,431.81x = 39,625.50 × 12,384.43
  4. Step 4: Simplify right side
    26,431.81x = 490,739,230.97
  5. Step 5: Solve for x
    x = 490,739,230.97/26,431.81
  6. Step 6: Final answer
    x = 18,566.24

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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.