Home / 28,887.84-43,324.20-12,239.28

Finding the Fourth Proportional to 28,887.84, 43,324.20 and 12,239.28

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Solution

The fourth proportional to 28,887.84, 43,324.20 and 12,239.28 is: 18,355.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.84 : 43,324.20 = 12,239.28 : x
  2. Step 2: Convert to fraction form
    28,887.84/43,324.20 = 12,239.28/x
  3. Step 3: Cross multiply
    28,887.84x = 43,324.20 × 12,239.28
  4. Step 4: Simplify right side
    28,887.84x = 530,257,014.58
  5. Step 5: Solve for x
    x = 530,257,014.58/28,887.84
  6. Step 6: Final answer
    x = 18,355.72

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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.