Home / 39,220.40-58,855.80-21,702.80

Finding the Fourth Proportional to 39,220.40, 58,855.80 and 21,702.80

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Solution

The fourth proportional to 39,220.40, 58,855.80 and 21,702.80 is: 32,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,220.40 : 58,855.80 = 21,702.80 : x
  2. Step 2: Convert to fraction form
    39,220.40/58,855.80 = 21,702.80/x
  3. Step 3: Cross multiply
    39,220.40x = 58,855.80 × 21,702.80
  4. Step 4: Simplify right side
    39,220.40x = 1,277,335,656.24
  5. Step 5: Solve for x
    x = 1,277,335,656.24/39,220.40
  6. Step 6: Final answer
    x = 32,568.14

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1.5x scale

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.