Home / 16,689.88-23,032.05-10,402.25

Finding the Fourth Proportional to 16,689.88, 23,032.05 and 10,402.25

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Solution

The fourth proportional to 16,689.88, 23,032.05 and 10,402.25 is: 14,355.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.88 : 23,032.05 = 10,402.25 : x
  2. Step 2: Convert to fraction form
    16,689.88/23,032.05 = 10,402.25/x
  3. Step 3: Cross multiply
    16,689.88x = 23,032.05 × 10,402.25
  4. Step 4: Simplify right side
    16,689.88x = 239,585,142.11
  5. Step 5: Solve for x
    x = 239,585,142.11/16,689.88
  6. Step 6: Final answer
    x = 14,355.11

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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.