Home / 37,385.90-51,592.60-20,390.18

Finding the Fourth Proportional to 37,385.90, 51,592.60 and 20,390.18

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Solution

The fourth proportional to 37,385.90, 51,592.60 and 20,390.18 is: 28,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,385.90 : 51,592.60 = 20,390.18 : x
  2. Step 2: Convert to fraction form
    37,385.90/51,592.60 = 20,390.18/x
  3. Step 3: Cross multiply
    37,385.90x = 51,592.60 × 20,390.18
  4. Step 4: Simplify right side
    37,385.90x = 1,051,982,400.67
  5. Step 5: Solve for x
    x = 1,051,982,400.67/37,385.90
  6. Step 6: Final answer
    x = 28,138.48

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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.