Home / 27,754.05-38,301.63-15,817.08

Finding the Fourth Proportional to 27,754.05, 38,301.63 and 15,817.08

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Solution

The fourth proportional to 27,754.05, 38,301.63 and 15,817.08 is: 21,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,754.05 : 38,301.63 = 15,817.08 : x
  2. Step 2: Convert to fraction form
    27,754.05/38,301.63 = 15,817.08/x
  3. Step 3: Cross multiply
    27,754.05x = 38,301.63 × 15,817.08
  4. Step 4: Simplify right side
    27,754.05x = 605,819,945.84
  5. Step 5: Solve for x
    x = 605,819,945.84/27,754.05
  6. Step 6: Final answer
    x = 21,828.16

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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.