Home / 37,771.20-52,125.12-21,006.72

Finding the Fourth Proportional to 37,771.20, 52,125.12 and 21,006.72

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Solution

The fourth proportional to 37,771.20, 52,125.12 and 21,006.72 is: 28,989.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,771.20 : 52,125.12 = 21,006.72 : x
  2. Step 2: Convert to fraction form
    37,771.20/52,125.12 = 21,006.72/x
  3. Step 3: Cross multiply
    37,771.20x = 52,125.12 × 21,006.72
  4. Step 4: Simplify right side
    37,771.20x = 1,094,977,800.81
  5. Step 5: Solve for x
    x = 1,094,977,800.81/37,771.20
  6. Step 6: Final answer
    x = 28,989.75

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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.