Home / 37,405.76-51,619.92-21,491.20

Finding the Fourth Proportional to 37,405.76, 51,619.92 and 21,491.20

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Solution

The fourth proportional to 37,405.76, 51,619.92 and 21,491.20 is: 29,657.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,405.76 : 51,619.92 = 21,491.20 : x
  2. Step 2: Convert to fraction form
    37,405.76/51,619.92 = 21,491.20/x
  3. Step 3: Cross multiply
    37,405.76x = 51,619.92 × 21,491.20
  4. Step 4: Simplify right side
    37,405.76x = 1,109,374,024.70
  5. Step 5: Solve for x
    x = 1,109,374,024.70/37,405.76
  6. Step 6: Final answer
    x = 29,657.84

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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.