Home / 19,201.60-28,802.40-13,296.70

Finding the Fourth Proportional to 19,201.60, 28,802.40 and 13,296.70

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Solution

The fourth proportional to 19,201.60, 28,802.40 and 13,296.70 is: 19,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.60 : 28,802.40 = 13,296.70 : x
  2. Step 2: Convert to fraction form
    19,201.60/28,802.40 = 13,296.70/x
  3. Step 3: Cross multiply
    19,201.60x = 28,802.40 × 13,296.70
  4. Step 4: Simplify right side
    19,201.60x = 382,976,872.08
  5. Step 5: Solve for x
    x = 382,976,872.08/19,201.60
  6. Step 6: Final answer
    x = 19,945.05

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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.