Home / 15,969.41-21,878.19-15,370.84

Finding the Fourth Proportional to 15,969.41, 21,878.19 and 15,370.84

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Solution

The fourth proportional to 15,969.41, 21,878.19 and 15,370.84 is: 21,058.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,969.41 : 21,878.19 = 15,370.84 : x
  2. Step 2: Convert to fraction form
    15,969.41/21,878.19 = 15,370.84/x
  3. Step 3: Cross multiply
    15,969.41x = 21,878.19 × 15,370.84
  4. Step 4: Simplify right side
    15,969.41x = 336,286,157.98
  5. Step 5: Solve for x
    x = 336,286,157.98/15,969.41
  6. Step 6: Final answer
    x = 21,058.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.