Home / 22,491.56-31,032.64-12,800.99

Finding the Fourth Proportional to 22,491.56, 31,032.64 and 12,800.99

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Solution

The fourth proportional to 22,491.56, 31,032.64 and 12,800.99 is: 17,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,491.56 : 31,032.64 = 12,800.99 : x
  2. Step 2: Convert to fraction form
    22,491.56/31,032.64 = 12,800.99/x
  3. Step 3: Cross multiply
    22,491.56x = 31,032.64 × 12,800.99
  4. Step 4: Simplify right side
    22,491.56x = 397,248,514.31
  5. Step 5: Solve for x
    x = 397,248,514.31/22,491.56
  6. Step 6: Final answer
    x = 17,662.11

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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.