Home / 21,352,016.80-32,028,025.20-20,359,993.60

Finding the Fourth Proportional to 21,352,016.80, 32,028,025.20 and 20,359,993.60

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Solution

The fourth proportional to 21,352,016.80, 32,028,025.20 and 20,359,993.60 is: 30,539,990.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352,016.80 : 32,028,025.20 = 20,359,993.60 : x
  2. Step 2: Convert to fraction form
    21,352,016.80/32,028,025.20 = 20,359,993.60/x
  3. Step 3: Cross multiply
    21,352,016.80x = 32,028,025.20 × 20,359,993.60
  4. Step 4: Simplify right side
    21,352,016.80x = 652,090,388,092,638.75
  5. Step 5: Solve for x
    x = 652,090,388,092,638.75/21,352,016.80
  6. Step 6: Final answer
    x = 30,539,990.40

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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.