Home / 39,983.88-59,977.98-10,401.78

Finding the Fourth Proportional to 39,983.88, 59,977.98 and 10,401.78

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Solution

The fourth proportional to 39,983.88, 59,977.98 and 10,401.78 is: 15,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,983.88 : 59,977.98 = 10,401.78 : x
  2. Step 2: Convert to fraction form
    39,983.88/59,977.98 = 10,401.78/x
  3. Step 3: Cross multiply
    39,983.88x = 59,977.98 × 10,401.78
  4. Step 4: Simplify right side
    39,983.88x = 623,877,752.80
  5. Step 5: Solve for x
    x = 623,877,752.80/39,983.88
  6. Step 6: Final answer
    x = 15,603.23

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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.