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Finding the Fourth Proportional to 27,762.07, 38,304.07 and 15,821.05

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Solution

The fourth proportional to 27,762.07, 38,304.07 and 15,821.05 is: 21,828.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.07 : 38,304.07 = 15,821.05 : x
  2. Step 2: Convert to fraction form
    27,762.07/38,304.07 = 15,821.05/x
  3. Step 3: Cross multiply
    27,762.07x = 38,304.07 × 15,821.05
  4. Step 4: Simplify right side
    27,762.07x = 606,010,606.67
  5. Step 5: Solve for x
    x = 606,010,606.67/27,762.07
  6. Step 6: Final answer
    x = 21,828.73

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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.