Home / 40,911.84-61,317.54-21,179.16

Finding the Fourth Proportional to 40,911.84, 61,317.54 and 21,179.16

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Solution

The fourth proportional to 40,911.84, 61,317.54 and 21,179.16 is: 31,742.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,911.84 : 61,317.54 = 21,179.16 : x
  2. Step 2: Convert to fraction form
    40,911.84/61,317.54 = 21,179.16/x
  3. Step 3: Cross multiply
    40,911.84x = 61,317.54 × 21,179.16
  4. Step 4: Simplify right side
    40,911.84x = 1,298,653,990.47
  5. Step 5: Solve for x
    x = 1,298,653,990.47/40,911.84
  6. Step 6: Final answer
    x = 31,742.74

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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.