Home / 33,123.40-49,571.70-19,985.20

Finding the Fourth Proportional to 33,123.40, 49,571.70 and 19,985.20

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Solution

The fourth proportional to 33,123.40, 49,571.70 and 19,985.20 is: 29,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,123.40 : 49,571.70 = 19,985.20 : x
  2. Step 2: Convert to fraction form
    33,123.40/49,571.70 = 19,985.20/x
  3. Step 3: Cross multiply
    33,123.40x = 49,571.70 × 19,985.20
  4. Step 4: Simplify right side
    33,123.40x = 990,700,338.84
  5. Step 5: Solve for x
    x = 990,700,338.84/33,123.40
  6. Step 6: Final answer
    x = 29,909.38

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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.