Home / 22,658.43-31,267.62-12,587.57

Finding the Fourth Proportional to 22,658.43, 31,267.62 and 12,587.57

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Solution

The fourth proportional to 22,658.43, 31,267.62 and 12,587.57 is: 17,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,658.43 : 31,267.62 = 12,587.57 : x
  2. Step 2: Convert to fraction form
    22,658.43/31,267.62 = 12,587.57/x
  3. Step 3: Cross multiply
    22,658.43x = 31,267.62 × 12,587.57
  4. Step 4: Simplify right side
    22,658.43x = 393,583,355.48
  5. Step 5: Solve for x
    x = 393,583,355.48/22,658.43
  6. Step 6: Final answer
    x = 17,370.28

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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.