Home / 20,048.28-30,071.25-5,257.20

Finding the Fourth Proportional to 20,048.28, 30,071.25 and 5,257.20

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Solution

The fourth proportional to 20,048.28, 30,071.25 and 5,257.20 is: 7,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,048.28 : 30,071.25 = 5,257.20 : x
  2. Step 2: Convert to fraction form
    20,048.28/30,071.25 = 5,257.20/x
  3. Step 3: Cross multiply
    20,048.28x = 30,071.25 × 5,257.20
  4. Step 4: Simplify right side
    20,048.28x = 158,090,688.27
  5. Step 5: Solve for x
    x = 158,090,688.27/20,048.28
  6. Step 6: Final answer
    x = 7,885.50

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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.