Home / 13,398.79-20,101.52-4,038.60

Finding the Fourth Proportional to 13,398.79, 20,101.52 and 4,038.60

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Solution

The fourth proportional to 13,398.79, 20,101.52 and 4,038.60 is: 6,058.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.79 : 20,101.52 = 4,038.60 : x
  2. Step 2: Convert to fraction form
    13,398.79/20,101.52 = 4,038.60/x
  3. Step 3: Cross multiply
    13,398.79x = 20,101.52 × 4,038.60
  4. Step 4: Simplify right side
    13,398.79x = 81,181,998.67
  5. Step 5: Solve for x
    x = 81,181,998.67/13,398.79
  6. Step 6: Final answer
    x = 6,058.91

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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.