Home / 26,858.61-40,285.17-7,139.16

Finding the Fourth Proportional to 26,858.61, 40,285.17 and 7,139.16

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Solution

The fourth proportional to 26,858.61, 40,285.17 and 7,139.16 is: 10,708.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,858.61 : 40,285.17 = 7,139.16 : x
  2. Step 2: Convert to fraction form
    26,858.61/40,285.17 = 7,139.16/x
  3. Step 3: Cross multiply
    26,858.61x = 40,285.17 × 7,139.16
  4. Step 4: Simplify right side
    26,858.61x = 287,602,274.26
  5. Step 5: Solve for x
    x = 287,602,274.26/26,858.61
  6. Step 6: Final answer
    x = 10,708.01

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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.