Home / 27,815.76-38,384.82-16,485.36

Finding the Fourth Proportional to 27,815.76, 38,384.82 and 16,485.36

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Solution

The fourth proportional to 27,815.76, 38,384.82 and 16,485.36 is: 22,749.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,815.76 : 38,384.82 = 16,485.36 : x
  2. Step 2: Convert to fraction form
    27,815.76/38,384.82 = 16,485.36/x
  3. Step 3: Cross multiply
    27,815.76x = 38,384.82 × 16,485.36
  4. Step 4: Simplify right side
    27,815.76x = 632,787,576.24
  5. Step 5: Solve for x
    x = 632,787,576.24/27,815.76
  6. Step 6: Final answer
    x = 22,749.25

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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.