Home / 25,783.90-38,670.99-12,627.88

Finding the Fourth Proportional to 25,783.90, 38,670.99 and 12,627.88

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Solution

The fourth proportional to 25,783.90, 38,670.99 and 12,627.88 is: 18,939.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.90 : 38,670.99 = 12,627.88 : x
  2. Step 2: Convert to fraction form
    25,783.90/38,670.99 = 12,627.88/x
  3. Step 3: Cross multiply
    25,783.90x = 38,670.99 × 12,627.88
  4. Step 4: Simplify right side
    25,783.90x = 488,332,621.20
  5. Step 5: Solve for x
    x = 488,332,621.20/25,783.90
  6. Step 6: Final answer
    x = 18,939.44

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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.