Home / 22,481.94-31,000.77-15,316.50

Finding the Fourth Proportional to 22,481.94, 31,000.77 and 15,316.50

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Solution

The fourth proportional to 22,481.94, 31,000.77 and 15,316.50 is: 21,120.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,481.94 : 31,000.77 = 15,316.50 : x
  2. Step 2: Convert to fraction form
    22,481.94/31,000.77 = 15,316.50/x
  3. Step 3: Cross multiply
    22,481.94x = 31,000.77 × 15,316.50
  4. Step 4: Simplify right side
    22,481.94x = 474,823,293.71
  5. Step 5: Solve for x
    x = 474,823,293.71/22,481.94
  6. Step 6: Final answer
    x = 21,120.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.