Home / 31,530.57-47,294.48-7,837.61

Finding the Fourth Proportional to 31,530.57, 47,294.48 and 7,837.61

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Solution

The fourth proportional to 31,530.57, 47,294.48 and 7,837.61 is: 11,756.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.57 : 47,294.48 = 7,837.61 : x
  2. Step 2: Convert to fraction form
    31,530.57/47,294.48 = 7,837.61/x
  3. Step 3: Cross multiply
    31,530.57x = 47,294.48 × 7,837.61
  4. Step 4: Simplify right side
    31,530.57x = 370,675,837.02
  5. Step 5: Solve for x
    x = 370,675,837.02/31,530.57
  6. Step 6: Final answer
    x = 11,756.08

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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.