Home / 26,580.93-39,865.89-11,780.40

Finding the Fourth Proportional to 26,580.93, 39,865.89 and 11,780.40

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Solution

The fourth proportional to 26,580.93, 39,865.89 and 11,780.40 is: 17,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,580.93 : 39,865.89 = 11,780.40 : x
  2. Step 2: Convert to fraction form
    26,580.93/39,865.89 = 11,780.40/x
  3. Step 3: Cross multiply
    26,580.93x = 39,865.89 × 11,780.40
  4. Step 4: Simplify right side
    26,580.93x = 469,636,130.56
  5. Step 5: Solve for x
    x = 469,636,130.56/26,580.93
  6. Step 6: Final answer
    x = 17,668.16

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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.