Home / 31,647.68-47,474.04-18,501.40

Finding the Fourth Proportional to 31,647.68, 47,474.04 and 18,501.40

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Solution

The fourth proportional to 31,647.68, 47,474.04 and 18,501.40 is: 27,753.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,647.68 : 47,474.04 = 18,501.40 : x
  2. Step 2: Convert to fraction form
    31,647.68/47,474.04 = 18,501.40/x
  3. Step 3: Cross multiply
    31,647.68x = 47,474.04 × 18,501.40
  4. Step 4: Simplify right side
    31,647.68x = 878,336,203.66
  5. Step 5: Solve for x
    x = 878,336,203.66/31,647.68
  6. Step 6: Final answer
    x = 27,753.57

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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.