Home / 39,568.47-54,604.50-21,664.63

Finding the Fourth Proportional to 39,568.47, 54,604.50 and 21,664.63

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Solution

The fourth proportional to 39,568.47, 54,604.50 and 21,664.63 is: 29,897.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,568.47 : 54,604.50 = 21,664.63 : x
  2. Step 2: Convert to fraction form
    39,568.47/54,604.50 = 21,664.63/x
  3. Step 3: Cross multiply
    39,568.47x = 54,604.50 × 21,664.63
  4. Step 4: Simplify right side
    39,568.47x = 1,182,986,288.84
  5. Step 5: Solve for x
    x = 1,182,986,288.84/39,568.47
  6. Step 6: Final answer
    x = 29,897.20

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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.