Home / 39,808.16-59,702.67-11,720.57

Finding the Fourth Proportional to 39,808.16, 59,702.67 and 11,720.57

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Solution

The fourth proportional to 39,808.16, 59,702.67 and 11,720.57 is: 17,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,808.16 : 59,702.67 = 11,720.57 : x
  2. Step 2: Convert to fraction form
    39,808.16/59,702.67 = 11,720.57/x
  3. Step 3: Cross multiply
    39,808.16x = 59,702.67 × 11,720.57
  4. Step 4: Simplify right side
    39,808.16x = 699,749,322.92
  5. Step 5: Solve for x
    x = 699,749,322.92/39,808.16
  6. Step 6: Final answer
    x = 17,578.04

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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.