Home / 39,784.84-59,665.04-13,125.90

Finding the Fourth Proportional to 39,784.84, 59,665.04 and 13,125.90

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Solution

The fourth proportional to 39,784.84, 59,665.04 and 13,125.90 is: 19,684.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,784.84 : 59,665.04 = 13,125.90 : x
  2. Step 2: Convert to fraction form
    39,784.84/59,665.04 = 13,125.90/x
  3. Step 3: Cross multiply
    39,784.84x = 59,665.04 × 13,125.90
  4. Step 4: Simplify right side
    39,784.84x = 783,157,348.54
  5. Step 5: Solve for x
    x = 783,157,348.54/39,784.84
  6. Step 6: Final answer
    x = 19,684.82

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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.