Home / 21,929.56-30,262.62-12,497.56

Finding the Fourth Proportional to 21,929.56, 30,262.62 and 12,497.56

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Solution

The fourth proportional to 21,929.56, 30,262.62 and 12,497.56 is: 17,246.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,929.56 : 30,262.62 = 12,497.56 : x
  2. Step 2: Convert to fraction form
    21,929.56/30,262.62 = 12,497.56/x
  3. Step 3: Cross multiply
    21,929.56x = 30,262.62 × 12,497.56
  4. Step 4: Simplify right side
    21,929.56x = 378,208,909.21
  5. Step 5: Solve for x
    x = 378,208,909.21/21,929.56
  6. Step 6: Final answer
    x = 17,246.53

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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.