Home / 27,479.28-37,921.40-15,542.36

Finding the Fourth Proportional to 27,479.28, 37,921.40 and 15,542.36

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Solution

The fourth proportional to 27,479.28, 37,921.40 and 15,542.36 is: 21,448.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,479.28 : 37,921.40 = 15,542.36 : x
  2. Step 2: Convert to fraction form
    27,479.28/37,921.40 = 15,542.36/x
  3. Step 3: Cross multiply
    27,479.28x = 37,921.40 × 15,542.36
  4. Step 4: Simplify right side
    27,479.28x = 589,387,783.19
  5. Step 5: Solve for x
    x = 589,387,783.19/27,479.28
  6. Step 6: Final answer
    x = 21,448.44

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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.