Home / 28,558.96-42,838.44-7,785.52

Finding the Fourth Proportional to 28,558.96, 42,838.44 and 7,785.52

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Solution

The fourth proportional to 28,558.96, 42,838.44 and 7,785.52 is: 11,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558.96 : 42,838.44 = 7,785.52 : x
  2. Step 2: Convert to fraction form
    28,558.96/42,838.44 = 7,785.52/x
  3. Step 3: Cross multiply
    28,558.96x = 42,838.44 × 7,785.52
  4. Step 4: Simplify right side
    28,558.96x = 333,519,531.39
  5. Step 5: Solve for x
    x = 333,519,531.39/28,558.96
  6. Step 6: Final answer
    x = 11,678.28

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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.