Home / 22,221.77-30,666.36-15,053.87

Finding the Fourth Proportional to 22,221.77, 30,666.36 and 15,053.87

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Solution

The fourth proportional to 22,221.77, 30,666.36 and 15,053.87 is: 20,774.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.77 : 30,666.36 = 15,053.87 : x
  2. Step 2: Convert to fraction form
    22,221.77/30,666.36 = 15,053.87/x
  3. Step 3: Cross multiply
    22,221.77x = 30,666.36 × 15,053.87
  4. Step 4: Simplify right side
    22,221.77x = 461,647,529.93
  5. Step 5: Solve for x
    x = 461,647,529.93/22,221.77
  6. Step 6: Final answer
    x = 20,774.57

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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.