Home / 22,941.91-31,656-13,512.34

Finding the Fourth Proportional to 22,941.91, 31,656 and 13,512.34

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Solution

The fourth proportional to 22,941.91, 31,656 and 13,512.34 is: 18,644.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,941.91 : 31,656 = 13,512.34 : x
  2. Step 2: Convert to fraction form
    22,941.91/31,656 = 13,512.34/x
  3. Step 3: Cross multiply
    22,941.91x = 31,656 × 13,512.34
  4. Step 4: Simplify right side
    22,941.91x = 427,746,635.04
  5. Step 5: Solve for x
    x = 427,746,635.04/22,941.91
  6. Step 6: Final answer
    x = 18,644.77

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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.