Home / 26,378.28-39,571.32-7,655.90

Finding the Fourth Proportional to 26,378.28, 39,571.32 and 7,655.90

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Solution

The fourth proportional to 26,378.28, 39,571.32 and 7,655.90 is: 11,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,378.28 : 39,571.32 = 7,655.90 : x
  2. Step 2: Convert to fraction form
    26,378.28/39,571.32 = 7,655.90/x
  3. Step 3: Cross multiply
    26,378.28x = 39,571.32 × 7,655.90
  4. Step 4: Simplify right side
    26,378.28x = 302,954,068.79
  5. Step 5: Solve for x
    x = 302,954,068.79/26,378.28
  6. Step 6: Final answer
    x = 11,484.98

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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.