Home / 28,678.44-42,996.70-19,295.13

Finding the Fourth Proportional to 28,678.44, 42,996.70 and 19,295.13

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Solution

The fourth proportional to 28,678.44, 42,996.70 and 19,295.13 is: 28,928.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.44 : 42,996.70 = 19,295.13 : x
  2. Step 2: Convert to fraction form
    28,678.44/42,996.70 = 19,295.13/x
  3. Step 3: Cross multiply
    28,678.44x = 42,996.70 × 19,295.13
  4. Step 4: Simplify right side
    28,678.44x = 829,626,992.89
  5. Step 5: Solve for x
    x = 829,626,992.89/28,678.44
  6. Step 6: Final answer
    x = 28,928.59

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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.