Home / 27,308.88-37,686.29-15,372.32

Finding the Fourth Proportional to 27,308.88, 37,686.29 and 15,372.32

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Solution

The fourth proportional to 27,308.88, 37,686.29 and 15,372.32 is: 21,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,308.88 : 37,686.29 = 15,372.32 : x
  2. Step 2: Convert to fraction form
    27,308.88/37,686.29 = 15,372.32/x
  3. Step 3: Cross multiply
    27,308.88x = 37,686.29 × 15,372.32
  4. Step 4: Simplify right side
    27,308.88x = 579,325,444.20
  5. Step 5: Solve for x
    x = 579,325,444.20/27,308.88
  6. Step 6: Final answer
    x = 21,213.81

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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.