Home / 22,549.20-31,118.80-12,477.48

Finding the Fourth Proportional to 22,549.20, 31,118.80 and 12,477.48

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Solution

The fourth proportional to 22,549.20, 31,118.80 and 12,477.48 is: 17,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,549.20 : 31,118.80 = 12,477.48 : x
  2. Step 2: Convert to fraction form
    22,549.20/31,118.80 = 12,477.48/x
  3. Step 3: Cross multiply
    22,549.20x = 31,118.80 × 12,477.48
  4. Step 4: Simplify right side
    22,549.20x = 388,284,204.62
  5. Step 5: Solve for x
    x = 388,284,204.62/22,549.20
  6. Step 6: Final answer
    x = 17,219.42

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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.