Home / 38,274.18-52,823.25-21,507.18

Finding the Fourth Proportional to 38,274.18, 52,823.25 and 21,507.18

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Solution

The fourth proportional to 38,274.18, 52,823.25 and 21,507.18 is: 29,682.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,274.18 : 52,823.25 = 21,507.18 : x
  2. Step 2: Convert to fraction form
    38,274.18/52,823.25 = 21,507.18/x
  3. Step 3: Cross multiply
    38,274.18x = 52,823.25 × 21,507.18
  4. Step 4: Simplify right side
    38,274.18x = 1,136,079,145.94
  5. Step 5: Solve for x
    x = 1,136,079,145.94/38,274.18
  6. Step 6: Final answer
    x = 29,682.65

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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.