Home / 19,308.68-28,977.60-12,732.56

Finding the Fourth Proportional to 19,308.68, 28,977.60 and 12,732.56

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Solution

The fourth proportional to 19,308.68, 28,977.60 and 12,732.56 is: 19,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,308.68 : 28,977.60 = 12,732.56 : x
  2. Step 2: Convert to fraction form
    19,308.68/28,977.60 = 12,732.56/x
  3. Step 3: Cross multiply
    19,308.68x = 28,977.60 × 12,732.56
  4. Step 4: Simplify right side
    19,308.68x = 368,959,030.66
  5. Step 5: Solve for x
    x = 368,959,030.66/19,308.68
  6. Step 6: Final answer
    x = 19,108.45

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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.