Home / 38,541.60-57,769.20-19,814.40

Finding the Fourth Proportional to 38,541.60, 57,769.20 and 19,814.40

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Solution

The fourth proportional to 38,541.60, 57,769.20 and 19,814.40 is: 29,699.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,541.60 : 57,769.20 = 19,814.40 : x
  2. Step 2: Convert to fraction form
    38,541.60/57,769.20 = 19,814.40/x
  3. Step 3: Cross multiply
    38,541.60x = 57,769.20 × 19,814.40
  4. Step 4: Simplify right side
    38,541.60x = 1,144,662,036.48
  5. Step 5: Solve for x
    x = 1,144,662,036.48/38,541.60
  6. Step 6: Final answer
    x = 29,699.39

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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.