Home / 21,538,187.20-32,307,280.80-15,491,569.60

Finding the Fourth Proportional to 21,538,187.20, 32,307,280.80 and 15,491,569.60

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Solution

The fourth proportional to 21,538,187.20, 32,307,280.80 and 15,491,569.60 is: 23,237,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538,187.20 : 32,307,280.80 = 15,491,569.60 : x
  2. Step 2: Convert to fraction form
    21,538,187.20/32,307,280.80 = 15,491,569.60/x
  3. Step 3: Cross multiply
    21,538,187.20x = 32,307,280.80 × 15,491,569.60
  4. Step 4: Simplify right side
    21,538,187.20x = 500,490,489,099,943.69
  5. Step 5: Solve for x
    x = 500,490,489,099,943.69/21,538,187.20
  6. Step 6: Final answer
    x = 23,237,354.40

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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.