Home / 22,612.56-31,208.52-12,543.24

Finding the Fourth Proportional to 22,612.56, 31,208.52 and 12,543.24

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Solution

The fourth proportional to 22,612.56, 31,208.52 and 12,543.24 is: 17,311.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,612.56 : 31,208.52 = 12,543.24 : x
  2. Step 2: Convert to fraction form
    22,612.56/31,208.52 = 12,543.24/x
  3. Step 3: Cross multiply
    22,612.56x = 31,208.52 × 12,543.24
  4. Step 4: Simplify right side
    22,612.56x = 391,455,956.40
  5. Step 5: Solve for x
    x = 391,455,956.40/22,612.56
  6. Step 6: Final answer
    x = 17,311.44

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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.