Home / 34,542.20-51,851.70-21,409.40

Finding the Fourth Proportional to 34,542.20, 51,851.70 and 21,409.40

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Solution

The fourth proportional to 34,542.20, 51,851.70 and 21,409.40 is: 32,137.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,542.20 : 51,851.70 = 21,409.40 : x
  2. Step 2: Convert to fraction form
    34,542.20/51,851.70 = 21,409.40/x
  3. Step 3: Cross multiply
    34,542.20x = 51,851.70 × 21,409.40
  4. Step 4: Simplify right side
    34,542.20x = 1,110,113,785.98
  5. Step 5: Solve for x
    x = 1,110,113,785.98/34,542.20
  6. Step 6: Final answer
    x = 32,137.90

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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.