Home / 31,647.90-47,430.32-23,288.78

Finding the Fourth Proportional to 31,647.90, 47,430.32 and 23,288.78

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Solution

The fourth proportional to 31,647.90, 47,430.32 and 23,288.78 is: 34,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.90 : 47,430.32 = 23,288.78 : x
  2. Step 2: Convert to fraction form
    31,647.90/47,430.32 = 23,288.78/x
  3. Step 3: Cross multiply
    31,647.90x = 47,430.32 × 23,288.78
  4. Step 4: Simplify right side
    31,647.90x = 1,104,593,934.21
  5. Step 5: Solve for x
    x = 1,104,593,934.21/31,647.90
  6. Step 6: Final answer
    x = 34,902.60

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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.