Home / 21,828.68-32,765.93-19,345.75

Finding the Fourth Proportional to 21,828.68, 32,765.93 and 19,345.75

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Solution

The fourth proportional to 21,828.68, 32,765.93 and 19,345.75 is: 29,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.68 : 32,765.93 = 19,345.75 : x
  2. Step 2: Convert to fraction form
    21,828.68/32,765.93 = 19,345.75/x
  3. Step 3: Cross multiply
    21,828.68x = 32,765.93 × 19,345.75
  4. Step 4: Simplify right side
    21,828.68x = 633,881,490.30
  5. Step 5: Solve for x
    x = 633,881,490.30/21,828.68
  6. Step 6: Final answer
    x = 29,038.93

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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.