Home / 39,442.78-59,181.51-20,718.47

Finding the Fourth Proportional to 39,442.78, 59,181.51 and 20,718.47

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Solution

The fourth proportional to 39,442.78, 59,181.51 and 20,718.47 is: 31,086.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,442.78 : 59,181.51 = 20,718.47 : x
  2. Step 2: Convert to fraction form
    39,442.78/59,181.51 = 20,718.47/x
  3. Step 3: Cross multiply
    39,442.78x = 59,181.51 × 20,718.47
  4. Step 4: Simplify right side
    39,442.78x = 1,226,150,043.58
  5. Step 5: Solve for x
    x = 1,226,150,043.58/39,442.78
  6. Step 6: Final answer
    x = 31,086.81

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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.