Home / 21,248.48-31,843.56-10,838.36

Finding the Fourth Proportional to 21,248.48, 31,843.56 and 10,838.36

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Solution

The fourth proportional to 21,248.48, 31,843.56 and 10,838.36 is: 16,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.48 : 31,843.56 = 10,838.36 : x
  2. Step 2: Convert to fraction form
    21,248.48/31,843.56 = 10,838.36/x
  3. Step 3: Cross multiply
    21,248.48x = 31,843.56 × 10,838.36
  4. Step 4: Simplify right side
    21,248.48x = 345,131,966.96
  5. Step 5: Solve for x
    x = 345,131,966.96/21,248.48
  6. Step 6: Final answer
    x = 16,242.67

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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.