Home / 21,038.54-31,527.73-15,448.02

Finding the Fourth Proportional to 21,038.54, 31,527.73 and 15,448.02

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Solution

The fourth proportional to 21,038.54, 31,527.73 and 15,448.02 is: 23,149.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.54 : 31,527.73 = 15,448.02 : x
  2. Step 2: Convert to fraction form
    21,038.54/31,527.73 = 15,448.02/x
  3. Step 3: Cross multiply
    21,038.54x = 31,527.73 × 15,448.02
  4. Step 4: Simplify right side
    21,038.54x = 487,040,904.68
  5. Step 5: Solve for x
    x = 487,040,904.68/21,038.54
  6. Step 6: Final answer
    x = 23,149.94

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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.