Home / 22,643.88-31,249.53-12,572.32

Finding the Fourth Proportional to 22,643.88, 31,249.53 and 12,572.32

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Solution

The fourth proportional to 22,643.88, 31,249.53 and 12,572.32 is: 17,350.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.88 : 31,249.53 = 12,572.32 : x
  2. Step 2: Convert to fraction form
    22,643.88/31,249.53 = 12,572.32/x
  3. Step 3: Cross multiply
    22,643.88x = 31,249.53 × 12,572.32
  4. Step 4: Simplify right side
    22,643.88x = 392,879,145.79
  5. Step 5: Solve for x
    x = 392,879,145.79/22,643.88
  6. Step 6: Final answer
    x = 17,350.35

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Half scale
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Double scale
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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.