Home / 38,639.79-57,885.80-26,138.34

Finding the Fourth Proportional to 38,639.79, 57,885.80 and 26,138.34

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Solution

The fourth proportional to 38,639.79, 57,885.80 and 26,138.34 is: 39,157.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.79 : 57,885.80 = 26,138.34 : x
  2. Step 2: Convert to fraction form
    38,639.79/57,885.80 = 26,138.34/x
  3. Step 3: Cross multiply
    38,639.79x = 57,885.80 × 26,138.34
  4. Step 4: Simplify right side
    38,639.79x = 1,513,038,590.88
  5. Step 5: Solve for x
    x = 1,513,038,590.88/38,639.79
  6. Step 6: Final answer
    x = 39,157.53

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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.