Home / 34,125.20-51,188.40-21,306.32

Finding the Fourth Proportional to 34,125.20, 51,188.40 and 21,306.32

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Solution

The fourth proportional to 34,125.20, 51,188.40 and 21,306.32 is: 31,959.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,125.20 : 51,188.40 = 21,306.32 : x
  2. Step 2: Convert to fraction form
    34,125.20/51,188.40 = 21,306.32/x
  3. Step 3: Cross multiply
    34,125.20x = 51,188.40 × 21,306.32
  4. Step 4: Simplify right side
    34,125.20x = 1,090,636,430.69
  5. Step 5: Solve for x
    x = 1,090,636,430.69/34,125.20
  6. Step 6: Final answer
    x = 31,959.85

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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.