Home / 15,223.92-21,015.36-11,031.36

Finding the Fourth Proportional to 15,223.92, 21,015.36 and 11,031.36

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Solution

The fourth proportional to 15,223.92, 21,015.36 and 11,031.36 is: 15,227.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223.92 : 21,015.36 = 11,031.36 : x
  2. Step 2: Convert to fraction form
    15,223.92/21,015.36 = 11,031.36/x
  3. Step 3: Cross multiply
    15,223.92x = 21,015.36 × 11,031.36
  4. Step 4: Simplify right side
    15,223.92x = 231,828,001.69
  5. Step 5: Solve for x
    x = 231,828,001.69/15,223.92
  6. Step 6: Final answer
    x = 15,227.88

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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.