Home / 22,418.80-30,937.72-12,347.20

Finding the Fourth Proportional to 22,418.80, 30,937.72 and 12,347.20

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Solution

The fourth proportional to 22,418.80, 30,937.72 and 12,347.20 is: 17,039.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,418.80 : 30,937.72 = 12,347.20 : x
  2. Step 2: Convert to fraction form
    22,418.80/30,937.72 = 12,347.20/x
  3. Step 3: Cross multiply
    22,418.80x = 30,937.72 × 12,347.20
  4. Step 4: Simplify right side
    22,418.80x = 381,994,216.38
  5. Step 5: Solve for x
    x = 381,994,216.38/22,418.80
  6. Step 6: Final answer
    x = 17,039.01

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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.