Home / 51,634.48-71,251.20-28,970.40

Finding the Fourth Proportional to 51,634.48, 71,251.20 and 28,970.40

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Solution

The fourth proportional to 51,634.48, 71,251.20 and 28,970.40 is: 39,976.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,634.48 : 71,251.20 = 28,970.40 : x
  2. Step 2: Convert to fraction form
    51,634.48/71,251.20 = 28,970.40/x
  3. Step 3: Cross multiply
    51,634.48x = 71,251.20 × 28,970.40
  4. Step 4: Simplify right side
    51,634.48x = 2,064,175,764.48
  5. Step 5: Solve for x
    x = 2,064,175,764.48/51,634.48
  6. Step 6: Final answer
    x = 39,976.69

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1.5x scale

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.