Home / 27,732.64-38,271.56-15,157.12

Finding the Fourth Proportional to 27,732.64, 38,271.56 and 15,157.12

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Solution

The fourth proportional to 27,732.64, 38,271.56 and 15,157.12 is: 20,917.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,732.64 : 38,271.56 = 15,157.12 : x
  2. Step 2: Convert to fraction form
    27,732.64/38,271.56 = 15,157.12/x
  3. Step 3: Cross multiply
    27,732.64x = 38,271.56 × 15,157.12
  4. Step 4: Simplify right side
    27,732.64x = 580,086,627.51
  5. Step 5: Solve for x
    x = 580,086,627.51/27,732.64
  6. Step 6: Final answer
    x = 20,917.11

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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.