Home / 28,663.38-42,918.93-19,288.98

Finding the Fourth Proportional to 28,663.38, 42,918.93 and 19,288.98

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Solution

The fourth proportional to 28,663.38, 42,918.93 and 19,288.98 is: 28,882.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.38 : 42,918.93 = 19,288.98 : x
  2. Step 2: Convert to fraction form
    28,663.38/42,918.93 = 19,288.98/x
  3. Step 3: Cross multiply
    28,663.38x = 42,918.93 × 19,288.98
  4. Step 4: Simplify right side
    28,663.38x = 827,862,382.39
  5. Step 5: Solve for x
    x = 827,862,382.39/28,663.38
  6. Step 6: Final answer
    x = 28,882.23

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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.