Home / 28,196.66-42,290.40-10,662.32

Finding the Fourth Proportional to 28,196.66, 42,290.40 and 10,662.32

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Solution

The fourth proportional to 28,196.66, 42,290.40 and 10,662.32 is: 15,991.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,196.66 : 42,290.40 = 10,662.32 : x
  2. Step 2: Convert to fraction form
    28,196.66/42,290.40 = 10,662.32/x
  3. Step 3: Cross multiply
    28,196.66x = 42,290.40 × 10,662.32
  4. Step 4: Simplify right side
    28,196.66x = 450,913,777.73
  5. Step 5: Solve for x
    x = 450,913,777.73/28,196.66
  6. Step 6: Final answer
    x = 15,991.74

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1.5x scale

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.