Home / 20,019.44-30,030.24-5,228.40

Finding the Fourth Proportional to 20,019.44, 30,030.24 and 5,228.40

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Solution

The fourth proportional to 20,019.44, 30,030.24 and 5,228.40 is: 7,842.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,019.44 : 30,030.24 = 5,228.40 : x
  2. Step 2: Convert to fraction form
    20,019.44/30,030.24 = 5,228.40/x
  3. Step 3: Cross multiply
    20,019.44x = 30,030.24 × 5,228.40
  4. Step 4: Simplify right side
    20,019.44x = 157,010,106.82
  5. Step 5: Solve for x
    x = 157,010,106.82/20,019.44
  6. Step 6: Final answer
    x = 7,842.88

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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.