Home / 22,925.99-31,639.17-12,857.66

Finding the Fourth Proportional to 22,925.99, 31,639.17 and 12,857.66

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Solution

The fourth proportional to 22,925.99, 31,639.17 and 12,857.66 is: 17,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,925.99 : 31,639.17 = 12,857.66 : x
  2. Step 2: Convert to fraction form
    22,925.99/31,639.17 = 12,857.66/x
  3. Step 3: Cross multiply
    22,925.99x = 31,639.17 × 12,857.66
  4. Step 4: Simplify right side
    22,925.99x = 406,805,690.54
  5. Step 5: Solve for x
    x = 406,805,690.54/22,925.99
  6. Step 6: Final answer
    x = 17,744.30

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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.