Home / 28,649.72-39,535.99-15,902.16

Finding the Fourth Proportional to 28,649.72, 39,535.99 and 15,902.16

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Solution

The fourth proportional to 28,649.72, 39,535.99 and 15,902.16 is: 21,944.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,649.72 : 39,535.99 = 15,902.16 : x
  2. Step 2: Convert to fraction form
    28,649.72/39,535.99 = 15,902.16/x
  3. Step 3: Cross multiply
    28,649.72x = 39,535.99 × 15,902.16
  4. Step 4: Simplify right side
    28,649.72x = 628,707,638.74
  5. Step 5: Solve for x
    x = 628,707,638.74/28,649.72
  6. Step 6: Final answer
    x = 21,944.63

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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.