Home / 27,748.17-38,292.55-15,812.01

Finding the Fourth Proportional to 27,748.17, 38,292.55 and 15,812.01

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Solution

The fourth proportional to 27,748.17, 38,292.55 and 15,812.01 is: 21,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,748.17 : 38,292.55 = 15,812.01 : x
  2. Step 2: Convert to fraction form
    27,748.17/38,292.55 = 15,812.01/x
  3. Step 3: Cross multiply
    27,748.17x = 38,292.55 × 15,812.01
  4. Step 4: Simplify right side
    27,748.17x = 605,482,144.00
  5. Step 5: Solve for x
    x = 605,482,144.00/27,748.17
  6. Step 6: Final answer
    x = 21,820.62

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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.