Home / 21,624.77-29,842.62-12,191.51

Finding the Fourth Proportional to 21,624.77, 29,842.62 and 12,191.51

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Solution

The fourth proportional to 21,624.77, 29,842.62 and 12,191.51 is: 16,824.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,624.77 : 29,842.62 = 12,191.51 : x
  2. Step 2: Convert to fraction form
    21,624.77/29,842.62 = 12,191.51/x
  3. Step 3: Cross multiply
    21,624.77x = 29,842.62 × 12,191.51
  4. Step 4: Simplify right side
    21,624.77x = 363,826,600.16
  5. Step 5: Solve for x
    x = 363,826,600.16/21,624.77
  6. Step 6: Final answer
    x = 16,824.53

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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.