Home / 26,639.71-39,967.56-7,920.41

Finding the Fourth Proportional to 26,639.71, 39,967.56 and 7,920.41

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Solution

The fourth proportional to 26,639.71, 39,967.56 and 7,920.41 is: 11,882.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,639.71 : 39,967.56 = 7,920.41 : x
  2. Step 2: Convert to fraction form
    26,639.71/39,967.56 = 7,920.41/x
  3. Step 3: Cross multiply
    26,639.71x = 39,967.56 × 7,920.41
  4. Step 4: Simplify right side
    26,639.71x = 316,559,262.06
  5. Step 5: Solve for x
    x = 316,559,262.06/26,639.71
  6. Step 6: Final answer
    x = 11,882.99

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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.