Home / 37,019.20-51,089.52-21,108.64

Finding the Fourth Proportional to 37,019.20, 51,089.52 and 21,108.64

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Solution

The fourth proportional to 37,019.20, 51,089.52 and 21,108.64 is: 29,131.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,019.20 : 51,089.52 = 21,108.64 : x
  2. Step 2: Convert to fraction form
    37,019.20/51,089.52 = 21,108.64/x
  3. Step 3: Cross multiply
    37,019.20x = 51,089.52 × 21,108.64
  4. Step 4: Simplify right side
    37,019.20x = 1,078,430,285.45
  5. Step 5: Solve for x
    x = 1,078,430,285.45/37,019.20
  6. Step 6: Final answer
    x = 29,131.65

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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.