Home / 40,899.78-61,356.78-15,953.40

Finding the Fourth Proportional to 40,899.78, 61,356.78 and 15,953.40

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Solution

The fourth proportional to 40,899.78, 61,356.78 and 15,953.40 is: 23,932.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,899.78 : 61,356.78 = 15,953.40 : x
  2. Step 2: Convert to fraction form
    40,899.78/61,356.78 = 15,953.40/x
  3. Step 3: Cross multiply
    40,899.78x = 61,356.78 × 15,953.40
  4. Step 4: Simplify right side
    40,899.78x = 978,849,254.05
  5. Step 5: Solve for x
    x = 978,849,254.05/40,899.78
  6. Step 6: Final answer
    x = 23,932.87

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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.