Home / 19,628.80-29,443.20-4,837.60

Finding the Fourth Proportional to 19,628.80, 29,443.20 and 4,837.60

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Solution

The fourth proportional to 19,628.80, 29,443.20 and 4,837.60 is: 7,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.80 : 29,443.20 = 4,837.60 : x
  2. Step 2: Convert to fraction form
    19,628.80/29,443.20 = 4,837.60/x
  3. Step 3: Cross multiply
    19,628.80x = 29,443.20 × 4,837.60
  4. Step 4: Simplify right side
    19,628.80x = 142,434,424.32
  5. Step 5: Solve for x
    x = 142,434,424.32/19,628.80
  6. Step 6: Final answer
    x = 7,256.40

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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.