Home / 17,921.90-24,703.44-14,138.66

Finding the Fourth Proportional to 17,921.90, 24,703.44 and 14,138.66

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Solution

The fourth proportional to 17,921.90, 24,703.44 and 14,138.66 is: 19,488.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.90 : 24,703.44 = 14,138.66 : x
  2. Step 2: Convert to fraction form
    17,921.90/24,703.44 = 14,138.66/x
  3. Step 3: Cross multiply
    17,921.90x = 24,703.44 × 14,138.66
  4. Step 4: Simplify right side
    17,921.90x = 349,273,538.99
  5. Step 5: Solve for x
    x = 349,273,538.99/17,921.90
  6. Step 6: Final answer
    x = 19,488.64

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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.