Home / 21,560,515.20-32,340,772.80-20,001,621.60

Finding the Fourth Proportional to 21,560,515.20, 32,340,772.80 and 20,001,621.60

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Solution

The fourth proportional to 21,560,515.20, 32,340,772.80 and 20,001,621.60 is: 30,002,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560,515.20 : 32,340,772.80 = 20,001,621.60 : x
  2. Step 2: Convert to fraction form
    21,560,515.20/32,340,772.80 = 20,001,621.60/x
  3. Step 3: Cross multiply
    21,560,515.20x = 32,340,772.80 × 20,001,621.60
  4. Step 4: Simplify right side
    21,560,515.20x = 646,867,899,797,172.50
  5. Step 5: Solve for x
    x = 646,867,899,797,172.50/21,560,515.20
  6. Step 6: Final answer
    x = 30,002,432.40

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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.