Home / 26,549.12-39,840-15,460.72

Finding the Fourth Proportional to 26,549.12, 39,840 and 15,460.72

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Solution

The fourth proportional to 26,549.12, 39,840 and 15,460.72 is: 23,200.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,549.12 : 39,840 = 15,460.72 : x
  2. Step 2: Convert to fraction form
    26,549.12/39,840 = 15,460.72/x
  3. Step 3: Cross multiply
    26,549.12x = 39,840 × 15,460.72
  4. Step 4: Simplify right side
    26,549.12x = 615,955,084.80
  5. Step 5: Solve for x
    x = 615,955,084.80/26,549.12
  6. Step 6: Final answer
    x = 23,200.58

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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.