Home / 20,329.02-30,490.45-5,539.12

Finding the Fourth Proportional to 20,329.02, 30,490.45 and 5,539.12

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Solution

The fourth proportional to 20,329.02, 30,490.45 and 5,539.12 is: 8,307.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,329.02 : 30,490.45 = 5,539.12 : x
  2. Step 2: Convert to fraction form
    20,329.02/30,490.45 = 5,539.12/x
  3. Step 3: Cross multiply
    20,329.02x = 30,490.45 × 5,539.12
  4. Step 4: Simplify right side
    20,329.02x = 168,890,171.33
  5. Step 5: Solve for x
    x = 168,890,171.33/20,329.02
  6. Step 6: Final answer
    x = 8,307.84

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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.