Home / 28,658.61-39,542.78-17,325.86

Finding the Fourth Proportional to 28,658.61, 39,542.78 and 17,325.86

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Solution

The fourth proportional to 28,658.61, 39,542.78 and 17,325.86 is: 23,905.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,658.61 : 39,542.78 = 17,325.86 : x
  2. Step 2: Convert to fraction form
    28,658.61/39,542.78 = 17,325.86/x
  3. Step 3: Cross multiply
    28,658.61x = 39,542.78 × 17,325.86
  4. Step 4: Simplify right side
    28,658.61x = 685,112,515.89
  5. Step 5: Solve for x
    x = 685,112,515.89/28,658.61
  6. Step 6: Final answer
    x = 23,905.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.