Home / 34,854-48,077.28-20,697.36

Finding the Fourth Proportional to 34,854, 48,077.28 and 20,697.36

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Solution

The fourth proportional to 34,854, 48,077.28 and 20,697.36 is: 28,549.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,854 : 48,077.28 = 20,697.36 : x
  2. Step 2: Convert to fraction form
    34,854/48,077.28 = 20,697.36/x
  3. Step 3: Cross multiply
    34,854x = 48,077.28 × 20,697.36
  4. Step 4: Simplify right side
    34,854x = 995,072,771.98
  5. Step 5: Solve for x
    x = 995,072,771.98/34,854
  6. Step 6: Final answer
    x = 28,549.74

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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.