Home / 21,107.28-31,625.79-14,854.19

Finding the Fourth Proportional to 21,107.28, 31,625.79 and 14,854.19

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Solution

The fourth proportional to 21,107.28, 31,625.79 and 14,854.19 is: 22,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107.28 : 31,625.79 = 14,854.19 : x
  2. Step 2: Convert to fraction form
    21,107.28/31,625.79 = 14,854.19/x
  3. Step 3: Cross multiply
    21,107.28x = 31,625.79 × 14,854.19
  4. Step 4: Simplify right side
    21,107.28x = 469,775,363.28
  5. Step 5: Solve for x
    x = 469,775,363.28/21,107.28
  6. Step 6: Final answer
    x = 22,256.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.