Home / 22,965.63-31,690.12-12,895.17

Finding the Fourth Proportional to 22,965.63, 31,690.12 and 12,895.17

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Solution

The fourth proportional to 22,965.63, 31,690.12 and 12,895.17 is: 17,793.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,965.63 : 31,690.12 = 12,895.17 : x
  2. Step 2: Convert to fraction form
    22,965.63/31,690.12 = 12,895.17/x
  3. Step 3: Cross multiply
    22,965.63x = 31,690.12 × 12,895.17
  4. Step 4: Simplify right side
    22,965.63x = 408,649,357.82
  5. Step 5: Solve for x
    x = 408,649,357.82/22,965.63
  6. Step 6: Final answer
    x = 17,793.96

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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.