Home / 31,105.30-46,548.60-21,701.20

Finding the Fourth Proportional to 31,105.30, 46,548.60 and 21,701.20

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Solution

The fourth proportional to 31,105.30, 46,548.60 and 21,701.20 is: 32,475.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,105.30 : 46,548.60 = 21,701.20 : x
  2. Step 2: Convert to fraction form
    31,105.30/46,548.60 = 21,701.20/x
  3. Step 3: Cross multiply
    31,105.30x = 46,548.60 × 21,701.20
  4. Step 4: Simplify right side
    31,105.30x = 1,010,160,478.32
  5. Step 5: Solve for x
    x = 1,010,160,478.32/31,105.30
  6. Step 6: Final answer
    x = 32,475.51

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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.