Home / 22,387.52-30,893.80-12,315.32

Finding the Fourth Proportional to 22,387.52, 30,893.80 and 12,315.32

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Solution

The fourth proportional to 22,387.52, 30,893.80 and 12,315.32 is: 16,994.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,387.52 : 30,893.80 = 12,315.32 : x
  2. Step 2: Convert to fraction form
    22,387.52/30,893.80 = 12,315.32/x
  3. Step 3: Cross multiply
    22,387.52x = 30,893.80 × 12,315.32
  4. Step 4: Simplify right side
    22,387.52x = 380,467,129.43
  5. Step 5: Solve for x
    x = 380,467,129.43/22,387.52
  6. Step 6: Final answer
    x = 16,994.61

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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.