Home / 20,097.90-30,056.31-15,355.53

Finding the Fourth Proportional to 20,097.90, 30,056.31 and 15,355.53

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Solution

The fourth proportional to 20,097.90, 30,056.31 and 15,355.53 is: 22,964.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.90 : 30,056.31 = 15,355.53 : x
  2. Step 2: Convert to fraction form
    20,097.90/30,056.31 = 15,355.53/x
  3. Step 3: Cross multiply
    20,097.90x = 30,056.31 × 15,355.53
  4. Step 4: Simplify right side
    20,097.90x = 461,530,569.89
  5. Step 5: Solve for x
    x = 461,530,569.89/20,097.90
  6. Step 6: Final answer
    x = 22,964.12

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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.