Home / 31,530.23-47,293.98-7,837.28

Finding the Fourth Proportional to 31,530.23, 47,293.98 and 7,837.28

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Solution

The fourth proportional to 31,530.23, 47,293.98 and 7,837.28 is: 11,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,530.23 : 47,293.98 = 7,837.28 : x
  2. Step 2: Convert to fraction form
    31,530.23/47,293.98 = 7,837.28/x
  3. Step 3: Cross multiply
    31,530.23x = 47,293.98 × 7,837.28
  4. Step 4: Simplify right side
    31,530.23x = 370,655,975.12
  5. Step 5: Solve for x
    x = 370,655,975.12/31,530.23
  6. Step 6: Final answer
    x = 11,755.57

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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.