Home / 20,962.91-28,924.62-12,013.22

Finding the Fourth Proportional to 20,962.91, 28,924.62 and 12,013.22

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Solution

The fourth proportional to 20,962.91, 28,924.62 and 12,013.22 is: 16,575.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.91 : 28,924.62 = 12,013.22 : x
  2. Step 2: Convert to fraction form
    20,962.91/28,924.62 = 12,013.22/x
  3. Step 3: Cross multiply
    20,962.91x = 28,924.62 × 12,013.22
  4. Step 4: Simplify right side
    20,962.91x = 347,477,823.48
  5. Step 5: Solve for x
    x = 347,477,823.48/20,962.91
  6. Step 6: Final answer
    x = 16,575.84

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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.