Home / 28,409.77-39,206.69-15,834.52

Finding the Fourth Proportional to 28,409.77, 39,206.69 and 15,834.52

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Solution

The fourth proportional to 28,409.77, 39,206.69 and 15,834.52 is: 21,852.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,409.77 : 39,206.69 = 15,834.52 : x
  2. Step 2: Convert to fraction form
    28,409.77/39,206.69 = 15,834.52/x
  3. Step 3: Cross multiply
    28,409.77x = 39,206.69 × 15,834.52
  4. Step 4: Simplify right side
    28,409.77x = 620,819,146.15
  5. Step 5: Solve for x
    x = 620,819,146.15/28,409.77
  6. Step 6: Final answer
    x = 21,852.31

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1.5x scale

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.