Home / 51,028.37-70,430.57-28,375.31

Finding the Fourth Proportional to 51,028.37, 70,430.57 and 28,375.31

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Solution

The fourth proportional to 51,028.37, 70,430.57 and 28,375.31 is: 39,164.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,028.37 : 70,430.57 = 28,375.31 : x
  2. Step 2: Convert to fraction form
    51,028.37/70,430.57 = 28,375.31/x
  3. Step 3: Cross multiply
    51,028.37x = 70,430.57 × 28,375.31
  4. Step 4: Simplify right side
    51,028.37x = 1,998,488,763.20
  5. Step 5: Solve for x
    x = 1,998,488,763.20/51,028.37
  6. Step 6: Final answer
    x = 39,164.27

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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.