Home / 28,310.09-42,466.55-10,781.28

Finding the Fourth Proportional to 28,310.09, 42,466.55 and 10,781.28

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Solution

The fourth proportional to 28,310.09, 42,466.55 and 10,781.28 is: 16,172.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.09 : 42,466.55 = 10,781.28 : x
  2. Step 2: Convert to fraction form
    28,310.09/42,466.55 = 10,781.28/x
  3. Step 3: Cross multiply
    28,310.09x = 42,466.55 × 10,781.28
  4. Step 4: Simplify right side
    28,310.09x = 457,843,766.18
  5. Step 5: Solve for x
    x = 457,843,766.18/28,310.09
  6. Step 6: Final answer
    x = 16,172.46

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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.