Home / 28,937,757.42-39,933,947.61-15,885,238.46

Finding the Fourth Proportional to 28,937,757.42, 39,933,947.61 and 15,885,238.46

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Solution

The fourth proportional to 28,937,757.42, 39,933,947.61 and 15,885,238.46 is: 21,921,542.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937,757.42 : 39,933,947.61 = 15,885,238.46 : x
  2. Step 2: Convert to fraction form
    28,937,757.42/39,933,947.61 = 15,885,238.46/x
  3. Step 3: Cross multiply
    28,937,757.42x = 39,933,947.61 × 15,885,238.46
  4. Step 4: Simplify right side
    28,937,757.42x = 634,360,280,433,997.12
  5. Step 5: Solve for x
    x = 634,360,280,433,997.12/28,937,757.42
  6. Step 6: Final answer
    x = 21,921,542.54

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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.