Home / 19,120.88-26,393.86-16,421.24

Finding the Fourth Proportional to 19,120.88, 26,393.86 and 16,421.24

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Solution

The fourth proportional to 19,120.88, 26,393.86 and 16,421.24 is: 22,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.88 : 26,393.86 = 16,421.24 : x
  2. Step 2: Convert to fraction form
    19,120.88/26,393.86 = 16,421.24/x
  3. Step 3: Cross multiply
    19,120.88x = 26,393.86 × 16,421.24
  4. Step 4: Simplify right side
    19,120.88x = 433,419,909.59
  5. Step 5: Solve for x
    x = 433,419,909.59/19,120.88
  6. Step 6: Final answer
    x = 22,667.36

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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.