Home / 51,035.15-70,430.31-28,380.56

Finding the Fourth Proportional to 51,035.15, 70,430.31 and 28,380.56

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Solution

The fourth proportional to 51,035.15, 70,430.31 and 28,380.56 is: 39,166.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,035.15 : 70,430.31 = 28,380.56 : x
  2. Step 2: Convert to fraction form
    51,035.15/70,430.31 = 28,380.56/x
  3. Step 3: Cross multiply
    51,035.15x = 70,430.31 × 28,380.56
  4. Step 4: Simplify right side
    51,035.15x = 1,998,851,286.62
  5. Step 5: Solve for x
    x = 1,998,851,286.62/51,035.15
  6. Step 6: Final answer
    x = 39,166.17

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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.