Home / 15,790.32-21,792.24-13,559.58

Finding the Fourth Proportional to 15,790.32, 21,792.24 and 13,559.58

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Solution

The fourth proportional to 15,790.32, 21,792.24 and 13,559.58 is: 18,713.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790.32 : 21,792.24 = 13,559.58 : x
  2. Step 2: Convert to fraction form
    15,790.32/21,792.24 = 13,559.58/x
  3. Step 3: Cross multiply
    15,790.32x = 21,792.24 × 13,559.58
  4. Step 4: Simplify right side
    15,790.32x = 295,493,621.66
  5. Step 5: Solve for x
    x = 295,493,621.66/15,790.32
  6. Step 6: Final answer
    x = 18,713.59

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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.