Home / 26,375.13-39,509.70-12,315.77

Finding the Fourth Proportional to 26,375.13, 39,509.70 and 12,315.77

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Solution

The fourth proportional to 26,375.13, 39,509.70 and 12,315.77 is: 18,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,375.13 : 39,509.70 = 12,315.77 : x
  2. Step 2: Convert to fraction form
    26,375.13/39,509.70 = 12,315.77/x
  3. Step 3: Cross multiply
    26,375.13x = 39,509.70 × 12,315.77
  4. Step 4: Simplify right side
    26,375.13x = 486,592,180.42
  5. Step 5: Solve for x
    x = 486,592,180.42/26,375.13
  6. Step 6: Final answer
    x = 18,448.90

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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.