Home / 28,711.06-43,069.83-13,124.50

Finding the Fourth Proportional to 28,711.06, 43,069.83 and 13,124.50

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Solution

The fourth proportional to 28,711.06, 43,069.83 and 13,124.50 is: 19,688.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,711.06 : 43,069.83 = 13,124.50 : x
  2. Step 2: Convert to fraction form
    28,711.06/43,069.83 = 13,124.50/x
  3. Step 3: Cross multiply
    28,711.06x = 43,069.83 × 13,124.50
  4. Step 4: Simplify right side
    28,711.06x = 565,269,983.84
  5. Step 5: Solve for x
    x = 565,269,983.84/28,711.06
  6. Step 6: Final answer
    x = 19,688.23

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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.