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Finding the Fourth Proportional to 27,420.83, 41,128.05 and 7,701.08

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Solution

The fourth proportional to 27,420.83, 41,128.05 and 7,701.08 is: 11,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,420.83 : 41,128.05 = 7,701.08 : x
  2. Step 2: Convert to fraction form
    27,420.83/41,128.05 = 7,701.08/x
  3. Step 3: Cross multiply
    27,420.83x = 41,128.05 × 7,701.08
  4. Step 4: Simplify right side
    27,420.83x = 316,730,226.53
  5. Step 5: Solve for x
    x = 316,730,226.53/27,420.83
  6. Step 6: Final answer
    x = 11,550.72

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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.