Home / 27,748.60-38,293.86-15,812.08

Finding the Fourth Proportional to 27,748.60, 38,293.86 and 15,812.08

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Solution

The fourth proportional to 27,748.60, 38,293.86 and 15,812.08 is: 21,821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.60 : 38,293.86 = 15,812.08 : x
  2. Step 2: Convert to fraction form
    27,748.60/38,293.86 = 15,812.08/x
  3. Step 3: Cross multiply
    27,748.60x = 38,293.86 × 15,812.08
  4. Step 4: Simplify right side
    27,748.60x = 605,505,577.83
  5. Step 5: Solve for x
    x = 605,505,577.83/27,748.60
  6. Step 6: Final answer
    x = 21,821.12

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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.