Home / 28,317.53-39,077.84-16,380.62

Finding the Fourth Proportional to 28,317.53, 39,077.84 and 16,380.62

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Solution

The fourth proportional to 28,317.53, 39,077.84 and 16,380.62 is: 22,605.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317.53 : 39,077.84 = 16,380.62 : x
  2. Step 2: Convert to fraction form
    28,317.53/39,077.84 = 16,380.62/x
  3. Step 3: Cross multiply
    28,317.53x = 39,077.84 × 16,380.62
  4. Step 4: Simplify right side
    28,317.53x = 640,118,970.17
  5. Step 5: Solve for x
    x = 640,118,970.17/28,317.53
  6. Step 6: Final answer
    x = 22,605.05

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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.