Home / 19,490.88-26,863.20-15,525.12

Finding the Fourth Proportional to 19,490.88, 26,863.20 and 15,525.12

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Solution

The fourth proportional to 19,490.88, 26,863.20 and 15,525.12 is: 21,397.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.88 : 26,863.20 = 15,525.12 : x
  2. Step 2: Convert to fraction form
    19,490.88/26,863.20 = 15,525.12/x
  3. Step 3: Cross multiply
    19,490.88x = 26,863.20 × 15,525.12
  4. Step 4: Simplify right side
    19,490.88x = 417,054,403.58
  5. Step 5: Solve for x
    x = 417,054,403.58/19,490.88
  6. Step 6: Final answer
    x = 21,397.41

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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.