Home / 21,538,049.20-32,307,073.80-15,491,431.60

Finding the Fourth Proportional to 21,538,049.20, 32,307,073.80 and 15,491,431.60

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Solution

The fourth proportional to 21,538,049.20, 32,307,073.80 and 15,491,431.60 is: 23,237,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538,049.20 : 32,307,073.80 = 15,491,431.60 : x
  2. Step 2: Convert to fraction form
    21,538,049.20/32,307,073.80 = 15,491,431.60/x
  3. Step 3: Cross multiply
    21,538,049.20x = 32,307,073.80 × 15,491,431.60
  4. Step 4: Simplify right side
    21,538,049.20x = 500,482,823,968,852.06
  5. Step 5: Solve for x
    x = 500,482,823,968,852.06/21,538,049.20
  6. Step 6: Final answer
    x = 23,237,147.40

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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.