Home / 21,295.96-31,943.94-8,152.36

Finding the Fourth Proportional to 21,295.96, 31,943.94 and 8,152.36

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Solution

The fourth proportional to 21,295.96, 31,943.94 and 8,152.36 is: 12,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.96 : 31,943.94 = 8,152.36 : x
  2. Step 2: Convert to fraction form
    21,295.96/31,943.94 = 8,152.36/x
  3. Step 3: Cross multiply
    21,295.96x = 31,943.94 × 8,152.36
  4. Step 4: Simplify right side
    21,295.96x = 260,418,498.70
  5. Step 5: Solve for x
    x = 260,418,498.70/21,295.96
  6. Step 6: Final answer
    x = 12,228.54

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1.5x scale

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.