Home / 22,208.01-30,646.13-12,136.78

Finding the Fourth Proportional to 22,208.01, 30,646.13 and 12,136.78

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Solution

The fourth proportional to 22,208.01, 30,646.13 and 12,136.78 is: 16,748.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,208.01 : 30,646.13 = 12,136.78 : x
  2. Step 2: Convert to fraction form
    22,208.01/30,646.13 = 12,136.78/x
  3. Step 3: Cross multiply
    22,208.01x = 30,646.13 × 12,136.78
  4. Step 4: Simplify right side
    22,208.01x = 371,945,337.66
  5. Step 5: Solve for x
    x = 371,945,337.66/22,208.01
  6. Step 6: Final answer
    x = 16,748.25

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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.