Home / 16,977.28-23,431.46-9,903.71

Finding the Fourth Proportional to 16,977.28, 23,431.46 and 9,903.71

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Solution

The fourth proportional to 16,977.28, 23,431.46 and 9,903.71 is: 13,668.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977.28 : 23,431.46 = 9,903.71 : x
  2. Step 2: Convert to fraction form
    16,977.28/23,431.46 = 9,903.71/x
  3. Step 3: Cross multiply
    16,977.28x = 23,431.46 × 9,903.71
  4. Step 4: Simplify right side
    16,977.28x = 232,058,384.72
  5. Step 5: Solve for x
    x = 232,058,384.72/16,977.28
  6. Step 6: Final answer
    x = 13,668.76

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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.