Home / 22,210.92-30,636.77-13,251.51

Finding the Fourth Proportional to 22,210.92, 30,636.77 and 13,251.51

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Solution

The fourth proportional to 22,210.92, 30,636.77 and 13,251.51 is: 18,278.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.92 : 30,636.77 = 13,251.51 : x
  2. Step 2: Convert to fraction form
    22,210.92/30,636.77 = 13,251.51/x
  3. Step 3: Cross multiply
    22,210.92x = 30,636.77 × 13,251.51
  4. Step 4: Simplify right side
    22,210.92x = 405,983,397.77
  5. Step 5: Solve for x
    x = 405,983,397.77/22,210.92
  6. Step 6: Final answer
    x = 18,278.55

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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.