Home / 16,963.56-23,428-13,231.08

Finding the Fourth Proportional to 16,963.56, 23,428 and 13,231.08

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Solution

The fourth proportional to 16,963.56, 23,428 and 13,231.08 is: 18,273.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,963.56 : 23,428 = 13,231.08 : x
  2. Step 2: Convert to fraction form
    16,963.56/23,428 = 13,231.08/x
  3. Step 3: Cross multiply
    16,963.56x = 23,428 × 13,231.08
  4. Step 4: Simplify right side
    16,963.56x = 309,977,742.24
  5. Step 5: Solve for x
    x = 309,977,742.24/16,963.56
  6. Step 6: Final answer
    x = 18,273.15

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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.