Home / 27,649.78-38,157.59-15,552.36

Finding the Fourth Proportional to 27,649.78, 38,157.59 and 15,552.36

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Solution

The fourth proportional to 27,649.78, 38,157.59 and 15,552.36 is: 21,462.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,649.78 : 38,157.59 = 15,552.36 : x
  2. Step 2: Convert to fraction form
    27,649.78/38,157.59 = 15,552.36/x
  3. Step 3: Cross multiply
    27,649.78x = 38,157.59 × 15,552.36
  4. Step 4: Simplify right side
    27,649.78x = 593,440,615.29
  5. Step 5: Solve for x
    x = 593,440,615.29/27,649.78
  6. Step 6: Final answer
    x = 21,462.76

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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.