Home / 26,140.59-39,288.65-12,299.31

Finding the Fourth Proportional to 26,140.59, 39,288.65 and 12,299.31

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Solution

The fourth proportional to 26,140.59, 39,288.65 and 12,299.31 is: 18,485.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,140.59 : 39,288.65 = 12,299.31 : x
  2. Step 2: Convert to fraction form
    26,140.59/39,288.65 = 12,299.31/x
  3. Step 3: Cross multiply
    26,140.59x = 39,288.65 × 12,299.31
  4. Step 4: Simplify right side
    26,140.59x = 483,223,224.33
  5. Step 5: Solve for x
    x = 483,223,224.33/26,140.59
  6. Step 6: Final answer
    x = 18,485.55

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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.