Home / 38,376.38-52,959.06-21,380.32

Finding the Fourth Proportional to 38,376.38, 52,959.06 and 21,380.32

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Solution

The fourth proportional to 38,376.38, 52,959.06 and 21,380.32 is: 29,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,376.38 : 52,959.06 = 21,380.32 : x
  2. Step 2: Convert to fraction form
    38,376.38/52,959.06 = 21,380.32/x
  3. Step 3: Cross multiply
    38,376.38x = 52,959.06 × 21,380.32
  4. Step 4: Simplify right side
    38,376.38x = 1,132,281,477.44
  5. Step 5: Solve for x
    x = 1,132,281,477.44/38,376.38
  6. Step 6: Final answer
    x = 29,504.64

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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.