Home / 20,435.84-30,654.96-6,398.48

Finding the Fourth Proportional to 20,435.84, 30,654.96 and 6,398.48

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Solution

The fourth proportional to 20,435.84, 30,654.96 and 6,398.48 is: 9,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.84 : 30,654.96 = 6,398.48 : x
  2. Step 2: Convert to fraction form
    20,435.84/30,654.96 = 6,398.48/x
  3. Step 3: Cross multiply
    20,435.84x = 30,654.96 × 6,398.48
  4. Step 4: Simplify right side
    20,435.84x = 196,145,148.46
  5. Step 5: Solve for x
    x = 196,145,148.46/20,435.84
  6. Step 6: Final answer
    x = 9,598.10

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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.