Home / 37,112.11-51,215.45-20,980.25

Finding the Fourth Proportional to 37,112.11, 51,215.45 and 20,980.25

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Solution

The fourth proportional to 37,112.11, 51,215.45 and 20,980.25 is: 28,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,112.11 : 51,215.45 = 20,980.25 : x
  2. Step 2: Convert to fraction form
    37,112.11/51,215.45 = 20,980.25/x
  3. Step 3: Cross multiply
    37,112.11x = 51,215.45 × 20,980.25
  4. Step 4: Simplify right side
    37,112.11x = 1,074,512,944.86
  5. Step 5: Solve for x
    x = 1,074,512,944.86/37,112.11
  6. Step 6: Final answer
    x = 28,953.16

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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.