Home / 22,166.24-30,547.20-15,867.68

Finding the Fourth Proportional to 22,166.24, 30,547.20 and 15,867.68

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Solution

The fourth proportional to 22,166.24, 30,547.20 and 15,867.68 is: 21,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,166.24 : 30,547.20 = 15,867.68 : x
  2. Step 2: Convert to fraction form
    22,166.24/30,547.20 = 15,867.68/x
  3. Step 3: Cross multiply
    22,166.24x = 30,547.20 × 15,867.68
  4. Step 4: Simplify right side
    22,166.24x = 484,713,194.50
  5. Step 5: Solve for x
    x = 484,713,194.50/22,166.24
  6. Step 6: Final answer
    x = 21,867.18

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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.