Home / 22,259.39-30,718.31-12,187.67

Finding the Fourth Proportional to 22,259.39, 30,718.31 and 12,187.67

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Solution

The fourth proportional to 22,259.39, 30,718.31 and 12,187.67 is: 16,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,259.39 : 30,718.31 = 12,187.67 : x
  2. Step 2: Convert to fraction form
    22,259.39/30,718.31 = 12,187.67/x
  3. Step 3: Cross multiply
    22,259.39x = 30,718.31 × 12,187.67
  4. Step 4: Simplify right side
    22,259.39x = 374,384,410.71
  5. Step 5: Solve for x
    x = 374,384,410.71/22,259.39
  6. Step 6: Final answer
    x = 16,819.17

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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.