Home / 22,420.87-30,941-12,349.66

Finding the Fourth Proportional to 22,420.87, 30,941 and 12,349.66

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Solution

The fourth proportional to 22,420.87, 30,941 and 12,349.66 is: 17,042.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.87 : 30,941 = 12,349.66 : x
  2. Step 2: Convert to fraction form
    22,420.87/30,941 = 12,349.66/x
  3. Step 3: Cross multiply
    22,420.87x = 30,941 × 12,349.66
  4. Step 4: Simplify right side
    22,420.87x = 382,110,830.06
  5. Step 5: Solve for x
    x = 382,110,830.06/22,420.87
  6. Step 6: Final answer
    x = 17,042.64

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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.