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Finding the Fourth Proportional to 37,655.70, 51,965.40 and 20,659.64

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Solution

The fourth proportional to 37,655.70, 51,965.40 and 20,659.64 is: 28,510.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,655.70 : 51,965.40 = 20,659.64 : x
  2. Step 2: Convert to fraction form
    37,655.70/51,965.40 = 20,659.64/x
  3. Step 3: Cross multiply
    37,655.70x = 51,965.40 × 20,659.64
  4. Step 4: Simplify right side
    37,655.70x = 1,073,586,456.46
  5. Step 5: Solve for x
    x = 1,073,586,456.46/37,655.70
  6. Step 6: Final answer
    x = 28,510.60

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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.