Home / 19,887.72-29,830.08-14,351.04

Finding the Fourth Proportional to 19,887.72, 29,830.08 and 14,351.04

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Solution

The fourth proportional to 19,887.72, 29,830.08 and 14,351.04 is: 21,525.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.72 : 29,830.08 = 14,351.04 : x
  2. Step 2: Convert to fraction form
    19,887.72/29,830.08 = 14,351.04/x
  3. Step 3: Cross multiply
    19,887.72x = 29,830.08 × 14,351.04
  4. Step 4: Simplify right side
    19,887.72x = 428,092,671.28
  5. Step 5: Solve for x
    x = 428,092,671.28/19,887.72
  6. Step 6: Final answer
    x = 21,525.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.