Home / 22,128.90-30,538.23-12,057.35

Finding the Fourth Proportional to 22,128.90, 30,538.23 and 12,057.35

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Solution

The fourth proportional to 22,128.90, 30,538.23 and 12,057.35 is: 16,639.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,128.90 : 30,538.23 = 12,057.35 : x
  2. Step 2: Convert to fraction form
    22,128.90/30,538.23 = 12,057.35/x
  3. Step 3: Cross multiply
    22,128.90x = 30,538.23 × 12,057.35
  4. Step 4: Simplify right side
    22,128.90x = 368,209,974.80
  5. Step 5: Solve for x
    x = 368,209,974.80/22,128.90
  6. Step 6: Final answer
    x = 16,639.33

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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.