Home / 28,948.89-43,355.28-14,111.31

Finding the Fourth Proportional to 28,948.89, 43,355.28 and 14,111.31

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Solution

The fourth proportional to 28,948.89, 43,355.28 and 14,111.31 is: 21,133.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.89 : 43,355.28 = 14,111.31 : x
  2. Step 2: Convert to fraction form
    28,948.89/43,355.28 = 14,111.31/x
  3. Step 3: Cross multiply
    28,948.89x = 43,355.28 × 14,111.31
  4. Step 4: Simplify right side
    28,948.89x = 611,799,796.22
  5. Step 5: Solve for x
    x = 611,799,796.22/28,948.89
  6. Step 6: Final answer
    x = 21,133.79

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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.