Home / 22,675.70-31,291.08-12,603.80

Finding the Fourth Proportional to 22,675.70, 31,291.08 and 12,603.80

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Solution

The fourth proportional to 22,675.70, 31,291.08 and 12,603.80 is: 17,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,675.70 : 31,291.08 = 12,603.80 : x
  2. Step 2: Convert to fraction form
    22,675.70/31,291.08 = 12,603.80/x
  3. Step 3: Cross multiply
    22,675.70x = 31,291.08 × 12,603.80
  4. Step 4: Simplify right side
    22,675.70x = 394,386,514.10
  5. Step 5: Solve for x
    x = 394,386,514.10/22,675.70
  6. Step 6: Final answer
    x = 17,392.47

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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.