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Finding the Fourth Proportional to 27,953.65, 38,575.74 and 15,207.22

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Solution

The fourth proportional to 27,953.65, 38,575.74 and 15,207.22 is: 20,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,953.65 : 38,575.74 = 15,207.22 : x
  2. Step 2: Convert to fraction form
    27,953.65/38,575.74 = 15,207.22/x
  3. Step 3: Cross multiply
    27,953.65x = 38,575.74 × 15,207.22
  4. Step 4: Simplify right side
    27,953.65x = 586,629,764.84
  5. Step 5: Solve for x
    x = 586,629,764.84/27,953.65
  6. Step 6: Final answer
    x = 20,985.80

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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.