Home / 20,117.44-30,133.60-12,718.08

Finding the Fourth Proportional to 20,117.44, 30,133.60 and 12,718.08

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Solution

The fourth proportional to 20,117.44, 30,133.60 and 12,718.08 is: 19,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.44 : 30,133.60 = 12,718.08 : x
  2. Step 2: Convert to fraction form
    20,117.44/30,133.60 = 12,718.08/x
  3. Step 3: Cross multiply
    20,117.44x = 30,133.60 × 12,718.08
  4. Step 4: Simplify right side
    20,117.44x = 383,241,535.49
  5. Step 5: Solve for x
    x = 383,241,535.49/20,117.44
  6. Step 6: Final answer
    x = 19,050.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.