Home / 22,121.40-30,528.05-12,050.40

Finding the Fourth Proportional to 22,121.40, 30,528.05 and 12,050.40

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Solution

The fourth proportional to 22,121.40, 30,528.05 and 12,050.40 is: 16,629.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.40 : 30,528.05 = 12,050.40 : x
  2. Step 2: Convert to fraction form
    22,121.40/30,528.05 = 12,050.40/x
  3. Step 3: Cross multiply
    22,121.40x = 30,528.05 × 12,050.40
  4. Step 4: Simplify right side
    22,121.40x = 367,875,153.47
  5. Step 5: Solve for x
    x = 367,875,153.47/22,121.40
  6. Step 6: Final answer
    x = 16,629.83

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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.