Home / 22,813.61-31,254.12-21,960.77

Finding the Fourth Proportional to 22,813.61, 31,254.12 and 21,960.77

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Solution

The fourth proportional to 22,813.61, 31,254.12 and 21,960.77 is: 30,085.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,813.61 : 31,254.12 = 21,960.77 : x
  2. Step 2: Convert to fraction form
    22,813.61/31,254.12 = 21,960.77/x
  3. Step 3: Cross multiply
    22,813.61x = 31,254.12 × 21,960.77
  4. Step 4: Simplify right side
    22,813.61x = 686,364,540.87
  5. Step 5: Solve for x
    x = 686,364,540.87/22,813.61
  6. Step 6: Final answer
    x = 30,085.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.