Home / 31,929.56-47,896.49-12,210.20

Finding the Fourth Proportional to 31,929.56, 47,896.49 and 12,210.20

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Solution

The fourth proportional to 31,929.56, 47,896.49 and 12,210.20 is: 18,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,929.56 : 47,896.49 = 12,210.20 : x
  2. Step 2: Convert to fraction form
    31,929.56/47,896.49 = 12,210.20/x
  3. Step 3: Cross multiply
    31,929.56x = 47,896.49 × 12,210.20
  4. Step 4: Simplify right side
    31,929.56x = 584,825,513.24
  5. Step 5: Solve for x
    x = 584,825,513.24/31,929.56
  6. Step 6: Final answer
    x = 18,316.12

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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.