Home / 21,568.74-29,765.07-12,008.76

Finding the Fourth Proportional to 21,568.74, 29,765.07 and 12,008.76

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Solution

The fourth proportional to 21,568.74, 29,765.07 and 12,008.76 is: 16,572.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,568.74 : 29,765.07 = 12,008.76 : x
  2. Step 2: Convert to fraction form
    21,568.74/29,765.07 = 12,008.76/x
  3. Step 3: Cross multiply
    21,568.74x = 29,765.07 × 12,008.76
  4. Step 4: Simplify right side
    21,568.74x = 357,441,582.01
  5. Step 5: Solve for x
    x = 357,441,582.01/21,568.74
  6. Step 6: Final answer
    x = 16,572.21

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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.