Home / 28,621.36-39,493.74-16,686.82

Finding the Fourth Proportional to 28,621.36, 39,493.74 and 16,686.82

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Solution

The fourth proportional to 28,621.36, 39,493.74 and 16,686.82 is: 23,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.36 : 39,493.74 = 16,686.82 : x
  2. Step 2: Convert to fraction form
    28,621.36/39,493.74 = 16,686.82/x
  3. Step 3: Cross multiply
    28,621.36x = 39,493.74 × 16,686.82
  4. Step 4: Simplify right side
    28,621.36x = 659,024,930.51
  5. Step 5: Solve for x
    x = 659,024,930.51/28,621.36
  6. Step 6: Final answer
    x = 23,025.63

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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.