Home / 22,237.09-30,687.95-12,678.37

Finding the Fourth Proportional to 22,237.09, 30,687.95 and 12,678.37

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Solution

The fourth proportional to 22,237.09, 30,687.95 and 12,678.37 is: 17,496.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,237.09 : 30,687.95 = 12,678.37 : x
  2. Step 2: Convert to fraction form
    22,237.09/30,687.95 = 12,678.37/x
  3. Step 3: Cross multiply
    22,237.09x = 30,687.95 × 12,678.37
  4. Step 4: Simplify right side
    22,237.09x = 389,073,184.64
  5. Step 5: Solve for x
    x = 389,073,184.64/22,237.09
  6. Step 6: Final answer
    x = 17,496.59

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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.