Home / 51,039.83-70,438.16-28,383.89

Finding the Fourth Proportional to 51,039.83, 70,438.16 and 28,383.89

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Solution

The fourth proportional to 51,039.83, 70,438.16 and 28,383.89 is: 39,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,039.83 : 70,438.16 = 28,383.89 : x
  2. Step 2: Convert to fraction form
    51,039.83/70,438.16 = 28,383.89/x
  3. Step 3: Cross multiply
    51,039.83x = 70,438.16 × 28,383.89
  4. Step 4: Simplify right side
    51,039.83x = 1,999,309,232.30
  5. Step 5: Solve for x
    x = 1,999,309,232.30/51,039.83
  6. Step 6: Final answer
    x = 39,171.55

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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.