Home / 26,431.47-39,663.21-10,640.01

Finding the Fourth Proportional to 26,431.47, 39,663.21 and 10,640.01

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Solution

The fourth proportional to 26,431.47, 39,663.21 and 10,640.01 is: 15,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.47 : 39,663.21 = 10,640.01 : x
  2. Step 2: Convert to fraction form
    26,431.47/39,663.21 = 10,640.01/x
  3. Step 3: Cross multiply
    26,431.47x = 39,663.21 × 10,640.01
  4. Step 4: Simplify right side
    26,431.47x = 422,016,951.03
  5. Step 5: Solve for x
    x = 422,016,951.03/26,431.47
  6. Step 6: Final answer
    x = 15,966.46

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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.