Home / 27,090.09-37,387.43-15,156.45

Finding the Fourth Proportional to 27,090.09, 37,387.43 and 15,156.45

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Solution

The fourth proportional to 27,090.09, 37,387.43 and 15,156.45 is: 20,917.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,090.09 : 37,387.43 = 15,156.45 : x
  2. Step 2: Convert to fraction form
    27,090.09/37,387.43 = 15,156.45/x
  3. Step 3: Cross multiply
    27,090.09x = 37,387.43 × 15,156.45
  4. Step 4: Simplify right side
    27,090.09x = 566,660,637.64
  5. Step 5: Solve for x
    x = 566,660,637.64/27,090.09
  6. Step 6: Final answer
    x = 20,917.64

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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.