Home / 22,036.10-30,406.75-12,961.87

Finding the Fourth Proportional to 22,036.10, 30,406.75 and 12,961.87

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Solution

The fourth proportional to 22,036.10, 30,406.75 and 12,961.87 is: 17,885.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,036.10 : 30,406.75 = 12,961.87 : x
  2. Step 2: Convert to fraction form
    22,036.10/30,406.75 = 12,961.87/x
  3. Step 3: Cross multiply
    22,036.10x = 30,406.75 × 12,961.87
  4. Step 4: Simplify right side
    22,036.10x = 394,128,188.59
  5. Step 5: Solve for x
    x = 394,128,188.59/22,036.10
  6. Step 6: Final answer
    x = 17,885.57

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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.