Home / 19,902.40-29,853.60-13,292.80

Finding the Fourth Proportional to 19,902.40, 29,853.60 and 13,292.80

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Solution

The fourth proportional to 19,902.40, 29,853.60 and 13,292.80 is: 19,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,902.40 : 29,853.60 = 13,292.80 : x
  2. Step 2: Convert to fraction form
    19,902.40/29,853.60 = 13,292.80/x
  3. Step 3: Cross multiply
    19,902.40x = 29,853.60 × 13,292.80
  4. Step 4: Simplify right side
    19,902.40x = 396,837,934.08
  5. Step 5: Solve for x
    x = 396,837,934.08/19,902.40
  6. Step 6: Final answer
    x = 19,939.20

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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.