Home / 19,540.64-29,310.54-4,749.63

Finding the Fourth Proportional to 19,540.64, 29,310.54 and 4,749.63

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Solution

The fourth proportional to 19,540.64, 29,310.54 and 4,749.63 is: 7,124.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,540.64 : 29,310.54 = 4,749.63 : x
  2. Step 2: Convert to fraction form
    19,540.64/29,310.54 = 4,749.63/x
  3. Step 3: Cross multiply
    19,540.64x = 29,310.54 × 4,749.63
  4. Step 4: Simplify right side
    19,540.64x = 139,214,220.10
  5. Step 5: Solve for x
    x = 139,214,220.10/19,540.64
  6. Step 6: Final answer
    x = 7,124.34

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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.