Home / 39,895.10-59,860.28-21,170.57

Finding the Fourth Proportional to 39,895.10, 59,860.28 and 21,170.57

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Solution

The fourth proportional to 39,895.10, 59,860.28 and 21,170.57 is: 31,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,895.10 : 59,860.28 = 21,170.57 : x
  2. Step 2: Convert to fraction form
    39,895.10/59,860.28 = 21,170.57/x
  3. Step 3: Cross multiply
    39,895.10x = 59,860.28 × 21,170.57
  4. Step 4: Simplify right side
    39,895.10x = 1,267,276,247.96
  5. Step 5: Solve for x
    x = 1,267,276,247.96/39,895.10
  6. Step 6: Final answer
    x = 31,765.21

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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.