Home / 38,277.12-52,817.92-21,509.12

Finding the Fourth Proportional to 38,277.12, 52,817.92 and 21,509.12

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Solution

The fourth proportional to 38,277.12, 52,817.92 and 21,509.12 is: 29,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,277.12 : 52,817.92 = 21,509.12 : x
  2. Step 2: Convert to fraction form
    38,277.12/52,817.92 = 21,509.12/x
  3. Step 3: Cross multiply
    38,277.12x = 52,817.92 × 21,509.12
  4. Step 4: Simplify right side
    38,277.12x = 1,136,066,979.43
  5. Step 5: Solve for x
    x = 1,136,066,979.43/38,277.12
  6. Step 6: Final answer
    x = 29,680.05

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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.