Home / 20,338.80-30,506.28-6,484.08

Finding the Fourth Proportional to 20,338.80, 30,506.28 and 6,484.08

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Solution

The fourth proportional to 20,338.80, 30,506.28 and 6,484.08 is: 9,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.80 : 30,506.28 = 6,484.08 : x
  2. Step 2: Convert to fraction form
    20,338.80/30,506.28 = 6,484.08/x
  3. Step 3: Cross multiply
    20,338.80x = 30,506.28 × 6,484.08
  4. Step 4: Simplify right side
    20,338.80x = 197,805,160.02
  5. Step 5: Solve for x
    x = 197,805,160.02/20,338.80
  6. Step 6: Final answer
    x = 9,725.51

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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.