Home / 20,283.16-30,424.70-7,635.28

Finding the Fourth Proportional to 20,283.16, 30,424.70 and 7,635.28

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Solution

The fourth proportional to 20,283.16, 30,424.70 and 7,635.28 is: 11,452.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283.16 : 30,424.70 = 7,635.28 : x
  2. Step 2: Convert to fraction form
    20,283.16/30,424.70 = 7,635.28/x
  3. Step 3: Cross multiply
    20,283.16x = 30,424.70 × 7,635.28
  4. Step 4: Simplify right side
    20,283.16x = 232,301,103.42
  5. Step 5: Solve for x
    x = 232,301,103.42/20,283.16
  6. Step 6: Final answer
    x = 11,452.90

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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.