Home / 37,768.58-52,118.60-21,000.50

Finding the Fourth Proportional to 37,768.58, 52,118.60 and 21,000.50

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Solution

The fourth proportional to 37,768.58, 52,118.60 and 21,000.50 is: 28,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,768.58 : 52,118.60 = 21,000.50 : x
  2. Step 2: Convert to fraction form
    37,768.58/52,118.60 = 21,000.50/x
  3. Step 3: Cross multiply
    37,768.58x = 52,118.60 × 21,000.50
  4. Step 4: Simplify right side
    37,768.58x = 1,094,516,659.30
  5. Step 5: Solve for x
    x = 1,094,516,659.30/37,768.58
  6. Step 6: Final answer
    x = 28,979.56

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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.