Home / 27,837.28-38,415.60-15,090.56

Finding the Fourth Proportional to 27,837.28, 38,415.60 and 15,090.56

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Solution

The fourth proportional to 27,837.28, 38,415.60 and 15,090.56 is: 20,825.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,837.28 : 38,415.60 = 15,090.56 : x
  2. Step 2: Convert to fraction form
    27,837.28/38,415.60 = 15,090.56/x
  3. Step 3: Cross multiply
    27,837.28x = 38,415.60 × 15,090.56
  4. Step 4: Simplify right side
    27,837.28x = 579,712,916.74
  5. Step 5: Solve for x
    x = 579,712,916.74/27,837.28
  6. Step 6: Final answer
    x = 20,825.06

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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.