Home / 35,920.33-49,570.05-20,821.76

Finding the Fourth Proportional to 35,920.33, 49,570.05 and 20,821.76

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Solution

The fourth proportional to 35,920.33, 49,570.05 and 20,821.76 is: 28,734.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,920.33 : 49,570.05 = 20,821.76 : x
  2. Step 2: Convert to fraction form
    35,920.33/49,570.05 = 20,821.76/x
  3. Step 3: Cross multiply
    35,920.33x = 49,570.05 × 20,821.76
  4. Step 4: Simplify right side
    35,920.33x = 1,032,135,583.28
  5. Step 5: Solve for x
    x = 1,032,135,583.28/35,920.33
  6. Step 6: Final answer
    x = 28,734.02

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1.5x scale

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.