Home / 26,479.16-39,699.51-12,431.96

Finding the Fourth Proportional to 26,479.16, 39,699.51 and 12,431.96

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Solution

The fourth proportional to 26,479.16, 39,699.51 and 12,431.96 is: 18,638.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,479.16 : 39,699.51 = 12,431.96 : x
  2. Step 2: Convert to fraction form
    26,479.16/39,699.51 = 12,431.96/x
  3. Step 3: Cross multiply
    26,479.16x = 39,699.51 × 12,431.96
  4. Step 4: Simplify right side
    26,479.16x = 493,542,521.84
  5. Step 5: Solve for x
    x = 493,542,521.84/26,479.16
  6. Step 6: Final answer
    x = 18,638.91

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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.