Home / 28,888.45-39,865.97-15,969.05

Finding the Fourth Proportional to 28,888.45, 39,865.97 and 15,969.05

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Solution

The fourth proportional to 28,888.45, 39,865.97 and 15,969.05 is: 22,037.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,888.45 : 39,865.97 = 15,969.05 : x
  2. Step 2: Convert to fraction form
    28,888.45/39,865.97 = 15,969.05/x
  3. Step 3: Cross multiply
    28,888.45x = 39,865.97 × 15,969.05
  4. Step 4: Simplify right side
    28,888.45x = 636,621,658.32
  5. Step 5: Solve for x
    x = 636,621,658.32/28,888.45
  6. Step 6: Final answer
    x = 22,037.24

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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.