Home / 21,268.63-31,866.49-15,017.46

Finding the Fourth Proportional to 21,268.63, 31,866.49 and 15,017.46

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Solution

The fourth proportional to 21,268.63, 31,866.49 and 15,017.46 is: 22,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.63 : 31,866.49 = 15,017.46 : x
  2. Step 2: Convert to fraction form
    21,268.63/31,866.49 = 15,017.46/x
  3. Step 3: Cross multiply
    21,268.63x = 31,866.49 × 15,017.46
  4. Step 4: Simplify right side
    21,268.63x = 478,553,738.92
  5. Step 5: Solve for x
    x = 478,553,738.92/21,268.63
  6. Step 6: Final answer
    x = 22,500.45

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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.