Home / 20,072.60-30,109.71-5,283.01

Finding the Fourth Proportional to 20,072.60, 30,109.71 and 5,283.01

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Solution

The fourth proportional to 20,072.60, 30,109.71 and 5,283.01 is: 7,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.60 : 30,109.71 = 5,283.01 : x
  2. Step 2: Convert to fraction form
    20,072.60/30,109.71 = 5,283.01/x
  3. Step 3: Cross multiply
    20,072.60x = 30,109.71 × 5,283.01
  4. Step 4: Simplify right side
    20,072.60x = 159,069,899.03
  5. Step 5: Solve for x
    x = 159,069,899.03/20,072.60
  6. Step 6: Final answer
    x = 7,924.73

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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.