Home / 28,962.15-43,364.20-21,920.86

Finding the Fourth Proportional to 28,962.15, 43,364.20 and 21,920.86

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Solution

The fourth proportional to 28,962.15, 43,364.20 and 21,920.86 is: 32,821.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.15 : 43,364.20 = 21,920.86 : x
  2. Step 2: Convert to fraction form
    28,962.15/43,364.20 = 21,920.86/x
  3. Step 3: Cross multiply
    28,962.15x = 43,364.20 × 21,920.86
  4. Step 4: Simplify right side
    28,962.15x = 950,580,557.21
  5. Step 5: Solve for x
    x = 950,580,557.21/28,962.15
  6. Step 6: Final answer
    x = 32,821.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.