Home / 27,846.36-38,428.74-15,911.64

Finding the Fourth Proportional to 27,846.36, 38,428.74 and 15,911.64

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Solution

The fourth proportional to 27,846.36, 38,428.74 and 15,911.64 is: 21,958.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,846.36 : 38,428.74 = 15,911.64 : x
  2. Step 2: Convert to fraction form
    27,846.36/38,428.74 = 15,911.64/x
  3. Step 3: Cross multiply
    27,846.36x = 38,428.74 × 15,911.64
  4. Step 4: Simplify right side
    27,846.36x = 611,464,276.53
  5. Step 5: Solve for x
    x = 611,464,276.53/27,846.36
  6. Step 6: Final answer
    x = 21,958.50

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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.