Home / 37,113.20-51,214.38-20,980.16

Finding the Fourth Proportional to 37,113.20, 51,214.38 and 20,980.16

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Solution

The fourth proportional to 37,113.20, 51,214.38 and 20,980.16 is: 28,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,113.20 : 51,214.38 = 20,980.16 : x
  2. Step 2: Convert to fraction form
    37,113.20/51,214.38 = 20,980.16/x
  3. Step 3: Cross multiply
    37,113.20x = 51,214.38 × 20,980.16
  4. Step 4: Simplify right side
    37,113.20x = 1,074,485,886.70
  5. Step 5: Solve for x
    x = 1,074,485,886.70/37,113.20
  6. Step 6: Final answer
    x = 28,951.58

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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.