Home / 19,270.32-28,898.58-8,177.78

Finding the Fourth Proportional to 19,270.32, 28,898.58 and 8,177.78

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Solution

The fourth proportional to 19,270.32, 28,898.58 and 8,177.78 is: 12,263.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.32 : 28,898.58 = 8,177.78 : x
  2. Step 2: Convert to fraction form
    19,270.32/28,898.58 = 8,177.78/x
  3. Step 3: Cross multiply
    19,270.32x = 28,898.58 × 8,177.78
  4. Step 4: Simplify right side
    19,270.32x = 236,326,229.55
  5. Step 5: Solve for x
    x = 236,326,229.55/19,270.32
  6. Step 6: Final answer
    x = 12,263.74

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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.