Home / 28,742.50-43,113.70-9,022.57

Finding the Fourth Proportional to 28,742.50, 43,113.70 and 9,022.57

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Solution

The fourth proportional to 28,742.50, 43,113.70 and 9,022.57 is: 13,533.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.50 : 43,113.70 = 9,022.57 : x
  2. Step 2: Convert to fraction form
    28,742.50/43,113.70 = 9,022.57/x
  3. Step 3: Cross multiply
    28,742.50x = 43,113.70 × 9,022.57
  4. Step 4: Simplify right side
    28,742.50x = 388,996,376.21
  5. Step 5: Solve for x
    x = 388,996,376.21/28,742.50
  6. Step 6: Final answer
    x = 13,533.84

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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.