Home / 28,690.75-39,595.26-16,115.50

Finding the Fourth Proportional to 28,690.75, 39,595.26 and 16,115.50

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Solution

The fourth proportional to 28,690.75, 39,595.26 and 16,115.50 is: 22,240.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690.75 : 39,595.26 = 16,115.50 : x
  2. Step 2: Convert to fraction form
    28,690.75/39,595.26 = 16,115.50/x
  3. Step 3: Cross multiply
    28,690.75x = 39,595.26 × 16,115.50
  4. Step 4: Simplify right side
    28,690.75x = 638,097,412.53
  5. Step 5: Solve for x
    x = 638,097,412.53/28,690.75
  6. Step 6: Final answer
    x = 22,240.53

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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.