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Finding the Fourth Proportional to 37,340, 51,529.36 and 20,572.64

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Solution

The fourth proportional to 37,340, 51,529.36 and 20,572.64 is: 28,390.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,340 : 51,529.36 = 20,572.64 : x
  2. Step 2: Convert to fraction form
    37,340/51,529.36 = 20,572.64/x
  3. Step 3: Cross multiply
    37,340x = 51,529.36 × 20,572.64
  4. Step 4: Simplify right side
    37,340x = 1,060,094,972.71
  5. Step 5: Solve for x
    x = 1,060,094,972.71/37,340
  6. Step 6: Final answer
    x = 28,390.33

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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.