Home / 28,969.48-43,441.98-12,328.84

Finding the Fourth Proportional to 28,969.48, 43,441.98 and 12,328.84

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Solution

The fourth proportional to 28,969.48, 43,441.98 and 12,328.84 is: 18,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,969.48 : 43,441.98 = 12,328.84 : x
  2. Step 2: Convert to fraction form
    28,969.48/43,441.98 = 12,328.84/x
  3. Step 3: Cross multiply
    28,969.48x = 43,441.98 × 12,328.84
  4. Step 4: Simplify right side
    28,969.48x = 535,589,220.70
  5. Step 5: Solve for x
    x = 535,589,220.70/28,969.48
  6. Step 6: Final answer
    x = 18,488.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.