Home / 21,824.88-30,117.18-12,265.14

Finding the Fourth Proportional to 21,824.88, 30,117.18 and 12,265.14

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Solution

The fourth proportional to 21,824.88, 30,117.18 and 12,265.14 is: 16,925.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,824.88 : 30,117.18 = 12,265.14 : x
  2. Step 2: Convert to fraction form
    21,824.88/30,117.18 = 12,265.14/x
  3. Step 3: Cross multiply
    21,824.88x = 30,117.18 × 12,265.14
  4. Step 4: Simplify right side
    21,824.88x = 369,391,429.11
  5. Step 5: Solve for x
    x = 369,391,429.11/21,824.88
  6. Step 6: Final answer
    x = 16,925.24

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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.