Home / 28,518.87-39,360.90-16,589.13

Finding the Fourth Proportional to 28,518.87, 39,360.90 and 16,589.13

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Solution

The fourth proportional to 28,518.87, 39,360.90 and 16,589.13 is: 22,895.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.87 : 39,360.90 = 16,589.13 : x
  2. Step 2: Convert to fraction form
    28,518.87/39,360.90 = 16,589.13/x
  3. Step 3: Cross multiply
    28,518.87x = 39,360.90 × 16,589.13
  4. Step 4: Simplify right side
    28,518.87x = 652,963,087.02
  5. Step 5: Solve for x
    x = 652,963,087.02/28,518.87
  6. Step 6: Final answer
    x = 22,895.83

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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.