Home / 28,409.66-39,206.67-15,834.50

Finding the Fourth Proportional to 28,409.66, 39,206.67 and 15,834.50

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Solution

The fourth proportional to 28,409.66, 39,206.67 and 15,834.50 is: 21,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.66 : 39,206.67 = 15,834.50 : x
  2. Step 2: Convert to fraction form
    28,409.66/39,206.67 = 15,834.50/x
  3. Step 3: Cross multiply
    28,409.66x = 39,206.67 × 15,834.50
  4. Step 4: Simplify right side
    28,409.66x = 620,818,016.12
  5. Step 5: Solve for x
    x = 620,818,016.12/28,409.66
  6. Step 6: Final answer
    x = 21,852.36

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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.