Home / 22,210.16-30,650.73-12,138.38

Finding the Fourth Proportional to 22,210.16, 30,650.73 and 12,138.38

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Solution

The fourth proportional to 22,210.16, 30,650.73 and 12,138.38 is: 16,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.16 : 30,650.73 = 12,138.38 : x
  2. Step 2: Convert to fraction form
    22,210.16/30,650.73 = 12,138.38/x
  3. Step 3: Cross multiply
    22,210.16x = 30,650.73 × 12,138.38
  4. Step 4: Simplify right side
    22,210.16x = 372,050,244.53
  5. Step 5: Solve for x
    x = 372,050,244.53/22,210.16
  6. Step 6: Final answer
    x = 16,751.35

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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.