Home / 27,665.04-38,177.10-16,909.86

Finding the Fourth Proportional to 27,665.04, 38,177.10 and 16,909.86

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Solution

The fourth proportional to 27,665.04, 38,177.10 and 16,909.86 is: 23,335.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,665.04 : 38,177.10 = 16,909.86 : x
  2. Step 2: Convert to fraction form
    27,665.04/38,177.10 = 16,909.86/x
  3. Step 3: Cross multiply
    27,665.04x = 38,177.10 × 16,909.86
  4. Step 4: Simplify right side
    27,665.04x = 645,569,416.21
  5. Step 5: Solve for x
    x = 645,569,416.21/27,665.04
  6. Step 6: Final answer
    x = 23,335.21

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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.