Home / 22,590.03-31,174.51-12,518.64

Finding the Fourth Proportional to 22,590.03, 31,174.51 and 12,518.64

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Solution

The fourth proportional to 22,590.03, 31,174.51 and 12,518.64 is: 17,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,590.03 : 31,174.51 = 12,518.64 : x
  2. Step 2: Convert to fraction form
    22,590.03/31,174.51 = 12,518.64/x
  3. Step 3: Cross multiply
    22,590.03x = 31,174.51 × 12,518.64
  4. Step 4: Simplify right side
    22,590.03x = 390,262,436.57
  5. Step 5: Solve for x
    x = 390,262,436.57/22,590.03
  6. Step 6: Final answer
    x = 17,275.87

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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.