Home / 22,940.48-31,628.26-15,388.04

Finding the Fourth Proportional to 22,940.48, 31,628.26 and 15,388.04

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Solution

The fourth proportional to 22,940.48, 31,628.26 and 15,388.04 is: 21,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,940.48 : 31,628.26 = 15,388.04 : x
  2. Step 2: Convert to fraction form
    22,940.48/31,628.26 = 15,388.04/x
  3. Step 3: Cross multiply
    22,940.48x = 31,628.26 × 15,388.04
  4. Step 4: Simplify right side
    22,940.48x = 486,696,930.01
  5. Step 5: Solve for x
    x = 486,696,930.01/22,940.48
  6. Step 6: Final answer
    x = 21,215.64

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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.