Home / 38,376.90-52,964.01-21,383.91

Finding the Fourth Proportional to 38,376.90, 52,964.01 and 21,383.91

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Solution

The fourth proportional to 38,376.90, 52,964.01 and 21,383.91 is: 29,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,376.90 : 52,964.01 = 21,383.91 : x
  2. Step 2: Convert to fraction form
    38,376.90/52,964.01 = 21,383.91/x
  3. Step 3: Cross multiply
    38,376.90x = 52,964.01 × 21,383.91
  4. Step 4: Simplify right side
    38,376.90x = 1,132,577,623.08
  5. Step 5: Solve for x
    x = 1,132,577,623.08/38,376.90
  6. Step 6: Final answer
    x = 29,511.96

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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.