Home / 21,624.99-29,842.26-13,673.76

Finding the Fourth Proportional to 21,624.99, 29,842.26 and 13,673.76

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Solution

The fourth proportional to 21,624.99, 29,842.26 and 13,673.76 is: 18,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,624.99 : 29,842.26 = 13,673.76 : x
  2. Step 2: Convert to fraction form
    21,624.99/29,842.26 = 13,673.76/x
  3. Step 3: Cross multiply
    21,624.99x = 29,842.26 × 13,673.76
  4. Step 4: Simplify right side
    21,624.99x = 408,055,901.10
  5. Step 5: Solve for x
    x = 408,055,901.10/21,624.99
  6. Step 6: Final answer
    x = 18,869.65

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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.