Home / 20,137.07-30,213.74-9,036.02

Finding the Fourth Proportional to 20,137.07, 30,213.74 and 9,036.02

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Solution

The fourth proportional to 20,137.07, 30,213.74 and 9,036.02 is: 13,557.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,137.07 : 30,213.74 = 9,036.02 : x
  2. Step 2: Convert to fraction form
    20,137.07/30,213.74 = 9,036.02/x
  3. Step 3: Cross multiply
    20,137.07x = 30,213.74 × 9,036.02
  4. Step 4: Simplify right side
    20,137.07x = 273,011,830.44
  5. Step 5: Solve for x
    x = 273,011,830.44/20,137.07
  6. Step 6: Final answer
    x = 13,557.68

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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.