Home / 28,542.33-42,782.76-11,897.91

Finding the Fourth Proportional to 28,542.33, 42,782.76 and 11,897.91

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Solution

The fourth proportional to 28,542.33, 42,782.76 and 11,897.91 is: 17,834.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,542.33 : 42,782.76 = 11,897.91 : x
  2. Step 2: Convert to fraction form
    28,542.33/42,782.76 = 11,897.91/x
  3. Step 3: Cross multiply
    28,542.33x = 42,782.76 × 11,897.91
  4. Step 4: Simplify right side
    28,542.33x = 509,025,428.03
  5. Step 5: Solve for x
    x = 509,025,428.03/28,542.33
  6. Step 6: Final answer
    x = 17,834.05

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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.