Home / 27,985.48-38,607.78-16,801

Finding the Fourth Proportional to 27,985.48, 38,607.78 and 16,801

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Solution

The fourth proportional to 27,985.48, 38,607.78 and 16,801 is: 23,178.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,985.48 : 38,607.78 = 16,801 : x
  2. Step 2: Convert to fraction form
    27,985.48/38,607.78 = 16,801/x
  3. Step 3: Cross multiply
    27,985.48x = 38,607.78 × 16,801
  4. Step 4: Simplify right side
    27,985.48x = 648,649,311.78
  5. Step 5: Solve for x
    x = 648,649,311.78/27,985.48
  6. Step 6: Final answer
    x = 23,178.07

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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.