Home / 22,628.34-31,228.57-12,556.80

Finding the Fourth Proportional to 22,628.34, 31,228.57 and 12,556.80

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Solution

The fourth proportional to 22,628.34, 31,228.57 and 12,556.80 is: 17,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,628.34 : 31,228.57 = 12,556.80 : x
  2. Step 2: Convert to fraction form
    22,628.34/31,228.57 = 12,556.80/x
  3. Step 3: Cross multiply
    22,628.34x = 31,228.57 × 12,556.80
  4. Step 4: Simplify right side
    22,628.34x = 392,130,940.90
  5. Step 5: Solve for x
    x = 392,130,940.90/22,628.34
  6. Step 6: Final answer
    x = 17,329.20

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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.