Home / 20,238.89-30,360.88-10,866.03

Finding the Fourth Proportional to 20,238.89, 30,360.88 and 10,866.03

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Solution

The fourth proportional to 20,238.89, 30,360.88 and 10,866.03 is: 16,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.89 : 30,360.88 = 10,866.03 : x
  2. Step 2: Convert to fraction form
    20,238.89/30,360.88 = 10,866.03/x
  3. Step 3: Cross multiply
    20,238.89x = 30,360.88 × 10,866.03
  4. Step 4: Simplify right side
    20,238.89x = 329,902,053.94
  5. Step 5: Solve for x
    x = 329,902,053.94/20,238.89
  6. Step 6: Final answer
    x = 16,300.40

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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.