Home / 27,837.49-38,415.81-15,090.70

Finding the Fourth Proportional to 27,837.49, 38,415.81 and 15,090.70

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Solution

The fourth proportional to 27,837.49, 38,415.81 and 15,090.70 is: 20,825.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,837.49 : 38,415.81 = 15,090.70 : x
  2. Step 2: Convert to fraction form
    27,837.49/38,415.81 = 15,090.70/x
  3. Step 3: Cross multiply
    27,837.49x = 38,415.81 × 15,090.70
  4. Step 4: Simplify right side
    27,837.49x = 579,721,463.97
  5. Step 5: Solve for x
    x = 579,721,463.97/27,837.49
  6. Step 6: Final answer
    x = 20,825.21

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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.