Home / 19,212.80-28,821.12-5,885.64

Finding the Fourth Proportional to 19,212.80, 28,821.12 and 5,885.64

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Solution

The fourth proportional to 19,212.80, 28,821.12 and 5,885.64 is: 8,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.80 : 28,821.12 = 5,885.64 : x
  2. Step 2: Convert to fraction form
    19,212.80/28,821.12 = 5,885.64/x
  3. Step 3: Cross multiply
    19,212.80x = 28,821.12 × 5,885.64
  4. Step 4: Simplify right side
    19,212.80x = 169,630,714.65
  5. Step 5: Solve for x
    x = 169,630,714.65/19,212.80
  6. Step 6: Final answer
    x = 8,829.05

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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.