Home / 39,278.06-54,202.84-21,373.11

Finding the Fourth Proportional to 39,278.06, 54,202.84 and 21,373.11

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Solution

The fourth proportional to 39,278.06, 54,202.84 and 21,373.11 is: 29,494.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,278.06 : 54,202.84 = 21,373.11 : x
  2. Step 2: Convert to fraction form
    39,278.06/54,202.84 = 21,373.11/x
  3. Step 3: Cross multiply
    39,278.06x = 54,202.84 × 21,373.11
  4. Step 4: Simplify right side
    39,278.06x = 1,158,483,208.20
  5. Step 5: Solve for x
    x = 1,158,483,208.20/39,278.06
  6. Step 6: Final answer
    x = 29,494.41

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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.