Home / 28,539.73-42,802.67-11,890.68

Finding the Fourth Proportional to 28,539.73, 42,802.67 and 11,890.68

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Solution

The fourth proportional to 28,539.73, 42,802.67 and 11,890.68 is: 17,833.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.73 : 42,802.67 = 11,890.68 : x
  2. Step 2: Convert to fraction form
    28,539.73/42,802.67 = 11,890.68/x
  3. Step 3: Cross multiply
    28,539.73x = 42,802.67 × 11,890.68
  4. Step 4: Simplify right side
    28,539.73x = 508,952,852.12
  5. Step 5: Solve for x
    x = 508,952,852.12/28,539.73
  6. Step 6: Final answer
    x = 17,833.13

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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.