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Finding the Fourth Proportional to 37,646.80, 51,952.67 and 20,651.20

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Solution

The fourth proportional to 37,646.80, 51,952.67 and 20,651.20 is: 28,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,646.80 : 51,952.67 = 20,651.20 : x
  2. Step 2: Convert to fraction form
    37,646.80/51,952.67 = 20,651.20/x
  3. Step 3: Cross multiply
    37,646.80x = 51,952.67 × 20,651.20
  4. Step 4: Simplify right side
    37,646.80x = 1,072,884,978.70
  5. Step 5: Solve for x
    x = 1,072,884,978.70/37,646.80
  6. Step 6: Final answer
    x = 28,498.70

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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.