Home / 28,552.44-42,828.66-11,920.32

Finding the Fourth Proportional to 28,552.44, 42,828.66 and 11,920.32

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Solution

The fourth proportional to 28,552.44, 42,828.66 and 11,920.32 is: 17,880.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.44 : 42,828.66 = 11,920.32 : x
  2. Step 2: Convert to fraction form
    28,552.44/42,828.66 = 11,920.32/x
  3. Step 3: Cross multiply
    28,552.44x = 42,828.66 × 11,920.32
  4. Step 4: Simplify right side
    28,552.44x = 510,531,332.37
  5. Step 5: Solve for x
    x = 510,531,332.37/28,552.44
  6. Step 6: Final answer
    x = 17,880.48

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Similar ratio
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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.