Home / 39,147.75-58,731.75-12,852.72

Finding the Fourth Proportional to 39,147.75, 58,731.75 and 12,852.72

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Solution

The fourth proportional to 39,147.75, 58,731.75 and 12,852.72 is: 19,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,147.75 : 58,731.75 = 12,852.72 : x
  2. Step 2: Convert to fraction form
    39,147.75/58,731.75 = 12,852.72/x
  3. Step 3: Cross multiply
    39,147.75x = 58,731.75 × 12,852.72
  4. Step 4: Simplify right side
    39,147.75x = 754,862,737.86
  5. Step 5: Solve for x
    x = 754,862,737.86/39,147.75
  6. Step 6: Final answer
    x = 19,282.40

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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.