Home / 39,712.88-59,570.60-18,938.48

Finding the Fourth Proportional to 39,712.88, 59,570.60 and 18,938.48

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Solution

The fourth proportional to 39,712.88, 59,570.60 and 18,938.48 is: 28,408.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,712.88 : 59,570.60 = 18,938.48 : x
  2. Step 2: Convert to fraction form
    39,712.88/59,570.60 = 18,938.48/x
  3. Step 3: Cross multiply
    39,712.88x = 59,570.60 × 18,938.48
  4. Step 4: Simplify right side
    39,712.88x = 1,128,176,616.69
  5. Step 5: Solve for x
    x = 1,128,176,616.69/39,712.88
  6. Step 6: Final answer
    x = 28,408.33

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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.