Home / 39,543.03-54,570.26-21,638.03

Finding the Fourth Proportional to 39,543.03, 54,570.26 and 21,638.03

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Solution

The fourth proportional to 39,543.03, 54,570.26 and 21,638.03 is: 29,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,543.03 : 54,570.26 = 21,638.03 : x
  2. Step 2: Convert to fraction form
    39,543.03/54,570.26 = 21,638.03/x
  3. Step 3: Cross multiply
    39,543.03x = 54,570.26 × 21,638.03
  4. Step 4: Simplify right side
    39,543.03x = 1,180,792,541.95
  5. Step 5: Solve for x
    x = 1,180,792,541.95/39,543.03
  6. Step 6: Final answer
    x = 29,860.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.