Home / 22,590.76-31,175.32-12,519.37

Finding the Fourth Proportional to 22,590.76, 31,175.32 and 12,519.37

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Solution

The fourth proportional to 22,590.76, 31,175.32 and 12,519.37 is: 17,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,590.76 : 31,175.32 = 12,519.37 : x
  2. Step 2: Convert to fraction form
    22,590.76/31,175.32 = 12,519.37/x
  3. Step 3: Cross multiply
    22,590.76x = 31,175.32 × 12,519.37
  4. Step 4: Simplify right side
    22,590.76x = 390,295,210.07
  5. Step 5: Solve for x
    x = 390,295,210.07/22,590.76
  6. Step 6: Final answer
    x = 17,276.76

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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.