Home / 19,640.07-29,454.71-13,398.89

Finding the Fourth Proportional to 19,640.07, 29,454.71 and 13,398.89

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Solution

The fourth proportional to 19,640.07, 29,454.71 and 13,398.89 is: 20,094.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.07 : 29,454.71 = 13,398.89 : x
  2. Step 2: Convert to fraction form
    19,640.07/29,454.71 = 13,398.89/x
  3. Step 3: Cross multiply
    19,640.07x = 29,454.71 × 13,398.89
  4. Step 4: Simplify right side
    19,640.07x = 394,660,205.00
  5. Step 5: Solve for x
    x = 394,660,205.00/19,640.07
  6. Step 6: Final answer
    x = 20,094.64

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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.