Home / 38,938.51-58,410.60-13,981.60

Finding the Fourth Proportional to 38,938.51, 58,410.60 and 13,981.60

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Solution

The fourth proportional to 38,938.51, 58,410.60 and 13,981.60 is: 20,973.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,938.51 : 58,410.60 = 13,981.60 : x
  2. Step 2: Convert to fraction form
    38,938.51/58,410.60 = 13,981.60/x
  3. Step 3: Cross multiply
    38,938.51x = 58,410.60 × 13,981.60
  4. Step 4: Simplify right side
    38,938.51x = 816,673,644.96
  5. Step 5: Solve for x
    x = 816,673,644.96/38,938.51
  6. Step 6: Final answer
    x = 20,973.42

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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.