Home / 22,249.48-30,715.40-12,816.22

Finding the Fourth Proportional to 22,249.48, 30,715.40 and 12,816.22

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Solution

The fourth proportional to 22,249.48, 30,715.40 and 12,816.22 is: 17,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,249.48 : 30,715.40 = 12,816.22 : x
  2. Step 2: Convert to fraction form
    22,249.48/30,715.40 = 12,816.22/x
  3. Step 3: Cross multiply
    22,249.48x = 30,715.40 × 12,816.22
  4. Step 4: Simplify right side
    22,249.48x = 393,655,323.79
  5. Step 5: Solve for x
    x = 393,655,323.79/22,249.48
  6. Step 6: Final answer
    x = 17,692.79

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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.