Home / 39,985.98-59,943.32-20,254.38

Finding the Fourth Proportional to 39,985.98, 59,943.32 and 20,254.38

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Solution

The fourth proportional to 39,985.98, 59,943.32 and 20,254.38 is: 30,363.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,985.98 : 59,943.32 = 20,254.38 : x
  2. Step 2: Convert to fraction form
    39,985.98/59,943.32 = 20,254.38/x
  3. Step 3: Cross multiply
    39,985.98x = 59,943.32 × 20,254.38
  4. Step 4: Simplify right side
    39,985.98x = 1,214,114,380.75
  5. Step 5: Solve for x
    x = 1,214,114,380.75/39,985.98
  6. Step 6: Final answer
    x = 30,363.51

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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.