Home / 28,232.87-38,961.09-15,485.79

Finding the Fourth Proportional to 28,232.87, 38,961.09 and 15,485.79

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Solution

The fourth proportional to 28,232.87, 38,961.09 and 15,485.79 is: 21,370.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232.87 : 38,961.09 = 15,485.79 : x
  2. Step 2: Convert to fraction form
    28,232.87/38,961.09 = 15,485.79/x
  3. Step 3: Cross multiply
    28,232.87x = 38,961.09 × 15,485.79
  4. Step 4: Simplify right side
    28,232.87x = 603,343,257.91
  5. Step 5: Solve for x
    x = 603,343,257.91/28,232.87
  6. Step 6: Final answer
    x = 21,370.24

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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.