Home / 19,630.32-29,426.64-12,590.64

Finding the Fourth Proportional to 19,630.32, 29,426.64 and 12,590.64

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Solution

The fourth proportional to 19,630.32, 29,426.64 and 12,590.64 is: 18,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.32 : 29,426.64 = 12,590.64 : x
  2. Step 2: Convert to fraction form
    19,630.32/29,426.64 = 12,590.64/x
  3. Step 3: Cross multiply
    19,630.32x = 29,426.64 × 12,590.64
  4. Step 4: Simplify right side
    19,630.32x = 370,500,230.65
  5. Step 5: Solve for x
    x = 370,500,230.65/19,630.32
  6. Step 6: Final answer
    x = 18,873.88

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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.