Home / 37,770.88-52,120.64-21,856.36

Finding the Fourth Proportional to 37,770.88, 52,120.64 and 21,856.36

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Solution

The fourth proportional to 37,770.88, 52,120.64 and 21,856.36 is: 30,159.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,770.88 : 52,120.64 = 21,856.36 : x
  2. Step 2: Convert to fraction form
    37,770.88/52,120.64 = 21,856.36/x
  3. Step 3: Cross multiply
    37,770.88x = 52,120.64 × 21,856.36
  4. Step 4: Simplify right side
    37,770.88x = 1,139,167,471.27
  5. Step 5: Solve for x
    x = 1,139,167,471.27/37,770.88
  6. Step 6: Final answer
    x = 30,159.94

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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.