Home / 27,265.10-40,800.45-18,905.90

Finding the Fourth Proportional to 27,265.10, 40,800.45 and 18,905.90

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Solution

The fourth proportional to 27,265.10, 40,800.45 and 18,905.90 is: 28,291.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,265.10 : 40,800.45 = 18,905.90 : x
  2. Step 2: Convert to fraction form
    27,265.10/40,800.45 = 18,905.90/x
  3. Step 3: Cross multiply
    27,265.10x = 40,800.45 × 18,905.90
  4. Step 4: Simplify right side
    27,265.10x = 771,369,227.66
  5. Step 5: Solve for x
    x = 771,369,227.66/27,265.10
  6. Step 6: Final answer
    x = 28,291.45

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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.