Home / 31,904.30-47,856.51-8,530.13

Finding the Fourth Proportional to 31,904.30, 47,856.51 and 8,530.13

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Solution

The fourth proportional to 31,904.30, 47,856.51 and 8,530.13 is: 12,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,904.30 : 47,856.51 = 8,530.13 : x
  2. Step 2: Convert to fraction form
    31,904.30/47,856.51 = 8,530.13/x
  3. Step 3: Cross multiply
    31,904.30x = 47,856.51 × 8,530.13
  4. Step 4: Simplify right side
    31,904.30x = 408,222,012.36
  5. Step 5: Solve for x
    x = 408,222,012.36/31,904.30
  6. Step 6: Final answer
    x = 12,795.21

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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.