Home / 37,415.12-51,633.01-20,419.72

Finding the Fourth Proportional to 37,415.12, 51,633.01 and 20,419.72

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Solution

The fourth proportional to 37,415.12, 51,633.01 and 20,419.72 is: 28,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,415.12 : 51,633.01 = 20,419.72 : x
  2. Step 2: Convert to fraction form
    37,415.12/51,633.01 = 20,419.72/x
  3. Step 3: Cross multiply
    37,415.12x = 51,633.01 × 20,419.72
  4. Step 4: Simplify right side
    37,415.12x = 1,054,331,503.40
  5. Step 5: Solve for x
    x = 1,054,331,503.40/37,415.12
  6. Step 6: Final answer
    x = 28,179.29

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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.