Home / 21,287,216.80-31,930,825.20-17,035,688.80

Finding the Fourth Proportional to 21,287,216.80, 31,930,825.20 and 17,035,688.80

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Solution

The fourth proportional to 21,287,216.80, 31,930,825.20 and 17,035,688.80 is: 25,553,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,287,216.80 : 31,930,825.20 = 17,035,688.80 : x
  2. Step 2: Convert to fraction form
    21,287,216.80/31,930,825.20 = 17,035,688.80/x
  3. Step 3: Cross multiply
    21,287,216.80x = 31,930,825.20 × 17,035,688.80
  4. Step 4: Simplify right side
    21,287,216.80x = 543,963,601,234,397.75
  5. Step 5: Solve for x
    x = 543,963,601,234,397.75/21,287,216.80
  6. Step 6: Final answer
    x = 25,553,533.20

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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.