Home / 27,129.70-40,690.65-10,497.58

Finding the Fourth Proportional to 27,129.70, 40,690.65 and 10,497.58

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Solution

The fourth proportional to 27,129.70, 40,690.65 and 10,497.58 is: 15,744.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.70 : 40,690.65 = 10,497.58 : x
  2. Step 2: Convert to fraction form
    27,129.70/40,690.65 = 10,497.58/x
  3. Step 3: Cross multiply
    27,129.70x = 40,690.65 × 10,497.58
  4. Step 4: Simplify right side
    27,129.70x = 427,153,353.63
  5. Step 5: Solve for x
    x = 427,153,353.63/27,129.70
  6. Step 6: Final answer
    x = 15,744.86

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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.