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Finding the Fourth Proportional to 27,657, 38,166.66 and 15,081.84

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Solution

The fourth proportional to 27,657, 38,166.66 and 15,081.84 is: 20,812.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,657 : 38,166.66 = 15,081.84 : x
  2. Step 2: Convert to fraction form
    27,657/38,166.66 = 15,081.84/x
  3. Step 3: Cross multiply
    27,657x = 38,166.66 × 15,081.84
  4. Step 4: Simplify right side
    27,657x = 575,623,459.45
  5. Step 5: Solve for x
    x = 575,623,459.45/27,657
  6. Step 6: Final answer
    x = 20,812.94

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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.