Home / 40,729.30-61,055.64-21,981.24

Finding the Fourth Proportional to 40,729.30, 61,055.64 and 21,981.24

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Solution

The fourth proportional to 40,729.30, 61,055.64 and 21,981.24 is: 32,951.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,729.30 : 61,055.64 = 21,981.24 : x
  2. Step 2: Convert to fraction form
    40,729.30/61,055.64 = 21,981.24/x
  3. Step 3: Cross multiply
    40,729.30x = 61,055.64 × 21,981.24
  4. Step 4: Simplify right side
    40,729.30x = 1,342,078,676.19
  5. Step 5: Solve for x
    x = 1,342,078,676.19/40,729.30
  6. Step 6: Final answer
    x = 32,951.19

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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.