Home / 39,135.12-58,704.54-12,483.94

Finding the Fourth Proportional to 39,135.12, 58,704.54 and 12,483.94

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Solution

The fourth proportional to 39,135.12, 58,704.54 and 12,483.94 is: 18,726.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,135.12 : 58,704.54 = 12,483.94 : x
  2. Step 2: Convert to fraction form
    39,135.12/58,704.54 = 12,483.94/x
  3. Step 3: Cross multiply
    39,135.12x = 58,704.54 × 12,483.94
  4. Step 4: Simplify right side
    39,135.12x = 732,863,955.09
  5. Step 5: Solve for x
    x = 732,863,955.09/39,135.12
  6. Step 6: Final answer
    x = 18,726.50

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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.