Home / 26,375.32-39,509.98-12,315.95

Finding the Fourth Proportional to 26,375.32, 39,509.98 and 12,315.95

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Solution

The fourth proportional to 26,375.32, 39,509.98 and 12,315.95 is: 18,449.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,375.32 : 39,509.98 = 12,315.95 : x
  2. Step 2: Convert to fraction form
    26,375.32/39,509.98 = 12,315.95/x
  3. Step 3: Cross multiply
    26,375.32x = 39,509.98 × 12,315.95
  4. Step 4: Simplify right side
    26,375.32x = 486,602,858.00
  5. Step 5: Solve for x
    x = 486,602,858.00/26,375.32
  6. Step 6: Final answer
    x = 18,449.17

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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.