Home / 28,257.48-39,002.94-17,640.72

Finding the Fourth Proportional to 28,257.48, 39,002.94 and 17,640.72

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Solution

The fourth proportional to 28,257.48, 39,002.94 and 17,640.72 is: 24,348.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.48 : 39,002.94 = 17,640.72 : x
  2. Step 2: Convert to fraction form
    28,257.48/39,002.94 = 17,640.72/x
  3. Step 3: Cross multiply
    28,257.48x = 39,002.94 × 17,640.72
  4. Step 4: Simplify right side
    28,257.48x = 688,039,943.72
  5. Step 5: Solve for x
    x = 688,039,943.72/28,257.48
  6. Step 6: Final answer
    x = 24,348.95

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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.