Home / 28,021.04-38,669-15,446

Finding the Fourth Proportional to 28,021.04, 38,669 and 15,446

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Solution

The fourth proportional to 28,021.04, 38,669 and 15,446 is: 21,315.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,021.04 : 38,669 = 15,446 : x
  2. Step 2: Convert to fraction form
    28,021.04/38,669 = 15,446/x
  3. Step 3: Cross multiply
    28,021.04x = 38,669 × 15,446
  4. Step 4: Simplify right side
    28,021.04x = 597,281,374
  5. Step 5: Solve for x
    x = 597,281,374/28,021.04
  6. Step 6: Final answer
    x = 21,315.46

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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.