Home / 21,929.30-30,263.12-12,497.25

Finding the Fourth Proportional to 21,929.30, 30,263.12 and 12,497.25

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Solution

The fourth proportional to 21,929.30, 30,263.12 and 12,497.25 is: 17,246.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.30 : 30,263.12 = 12,497.25 : x
  2. Step 2: Convert to fraction form
    21,929.30/30,263.12 = 12,497.25/x
  3. Step 3: Cross multiply
    21,929.30x = 30,263.12 × 12,497.25
  4. Step 4: Simplify right side
    21,929.30x = 378,205,713.93
  5. Step 5: Solve for x
    x = 378,205,713.93/21,929.30
  6. Step 6: Final answer
    x = 17,246.60

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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.