Home / 28,175.58-42,258.24-10,639.62

Finding the Fourth Proportional to 28,175.58, 42,258.24 and 10,639.62

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Solution

The fourth proportional to 28,175.58, 42,258.24 and 10,639.62 is: 15,957.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.58 : 42,258.24 = 10,639.62 : x
  2. Step 2: Convert to fraction form
    28,175.58/42,258.24 = 10,639.62/x
  3. Step 3: Cross multiply
    28,175.58x = 42,258.24 × 10,639.62
  4. Step 4: Simplify right side
    28,175.58x = 449,611,615.47
  5. Step 5: Solve for x
    x = 449,611,615.47/28,175.58
  6. Step 6: Final answer
    x = 15,957.49

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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.