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Finding the Fourth Proportional to 37,389.60, 51,597 and 20,622.60

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Solution

The fourth proportional to 37,389.60, 51,597 and 20,622.60 is: 28,458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,389.60 : 51,597 = 20,622.60 : x
  2. Step 2: Convert to fraction form
    37,389.60/51,597 = 20,622.60/x
  3. Step 3: Cross multiply
    37,389.60x = 51,597 × 20,622.60
  4. Step 4: Simplify right side
    37,389.60x = 1,064,064,292.20
  5. Step 5: Solve for x
    x = 1,064,064,292.20/37,389.60
  6. Step 6: Final answer
    x = 28,458.83

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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.