Home / 35,355.48-48,778.35-21,921.90

Finding the Fourth Proportional to 35,355.48, 48,778.35 and 21,921.90

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Solution

The fourth proportional to 35,355.48, 48,778.35 and 21,921.90 is: 30,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,355.48 : 48,778.35 = 21,921.90 : x
  2. Step 2: Convert to fraction form
    35,355.48/48,778.35 = 21,921.90/x
  3. Step 3: Cross multiply
    35,355.48x = 48,778.35 × 21,921.90
  4. Step 4: Simplify right side
    35,355.48x = 1,069,314,110.87
  5. Step 5: Solve for x
    x = 1,069,314,110.87/35,355.48
  6. Step 6: Final answer
    x = 30,244.65

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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.