Home / 26,529.71-39,780.86-7,807.31

Finding the Fourth Proportional to 26,529.71, 39,780.86 and 7,807.31

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Solution

The fourth proportional to 26,529.71, 39,780.86 and 7,807.31 is: 11,706.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,529.71 : 39,780.86 = 7,807.31 : x
  2. Step 2: Convert to fraction form
    26,529.71/39,780.86 = 7,807.31/x
  3. Step 3: Cross multiply
    26,529.71x = 39,780.86 × 7,807.31
  4. Step 4: Simplify right side
    26,529.71x = 310,581,539.14
  5. Step 5: Solve for x
    x = 310,581,539.14/26,529.71
  6. Step 6: Final answer
    x = 11,706.94

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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.