Home / 21,921.65-30,237.73-13,841.02

Finding the Fourth Proportional to 21,921.65, 30,237.73 and 13,841.02

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Solution

The fourth proportional to 21,921.65, 30,237.73 and 13,841.02 is: 19,091.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921.65 : 30,237.73 = 13,841.02 : x
  2. Step 2: Convert to fraction form
    21,921.65/30,237.73 = 13,841.02/x
  3. Step 3: Cross multiply
    21,921.65x = 30,237.73 × 13,841.02
  4. Step 4: Simplify right side
    21,921.65x = 418,521,025.68
  5. Step 5: Solve for x
    x = 418,521,025.68/21,921.65
  6. Step 6: Final answer
    x = 19,091.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.