Home / 20,248.47-30,372.45-6,921.33

Finding the Fourth Proportional to 20,248.47, 30,372.45 and 6,921.33

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Solution

The fourth proportional to 20,248.47, 30,372.45 and 6,921.33 is: 10,381.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.47 : 30,372.45 = 6,921.33 : x
  2. Step 2: Convert to fraction form
    20,248.47/30,372.45 = 6,921.33/x
  3. Step 3: Cross multiply
    20,248.47x = 30,372.45 × 6,921.33
  4. Step 4: Simplify right side
    20,248.47x = 210,217,749.36
  5. Step 5: Solve for x
    x = 210,217,749.36/20,248.47
  6. Step 6: Final answer
    x = 10,381.91

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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.