Home / 22,211.81-30,653.01-12,140.04

Finding the Fourth Proportional to 22,211.81, 30,653.01 and 12,140.04

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Solution

The fourth proportional to 22,211.81, 30,653.01 and 12,140.04 is: 16,753.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,211.81 : 30,653.01 = 12,140.04 : x
  2. Step 2: Convert to fraction form
    22,211.81/30,653.01 = 12,140.04/x
  3. Step 3: Cross multiply
    22,211.81x = 30,653.01 × 12,140.04
  4. Step 4: Simplify right side
    22,211.81x = 372,128,767.52
  5. Step 5: Solve for x
    x = 372,128,767.52/22,211.81
  6. Step 6: Final answer
    x = 16,753.64

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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.