Home / 22,129.32-30,538.08-12,057.85

Finding the Fourth Proportional to 22,129.32, 30,538.08 and 12,057.85

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Solution

The fourth proportional to 22,129.32, 30,538.08 and 12,057.85 is: 16,639.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.32 : 30,538.08 = 12,057.85 : x
  2. Step 2: Convert to fraction form
    22,129.32/30,538.08 = 12,057.85/x
  3. Step 3: Cross multiply
    22,129.32x = 30,538.08 × 12,057.85
  4. Step 4: Simplify right side
    22,129.32x = 368,223,626.10
  5. Step 5: Solve for x
    x = 368,223,626.10/22,129.32
  6. Step 6: Final answer
    x = 16,639.62

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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.