Home / 28,732.84-39,650.56-15,985.37

Finding the Fourth Proportional to 28,732.84, 39,650.56 and 15,985.37

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Solution

The fourth proportional to 28,732.84, 39,650.56 and 15,985.37 is: 22,059.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,732.84 : 39,650.56 = 15,985.37 : x
  2. Step 2: Convert to fraction form
    28,732.84/39,650.56 = 15,985.37/x
  3. Step 3: Cross multiply
    28,732.84x = 39,650.56 × 15,985.37
  4. Step 4: Simplify right side
    28,732.84x = 633,828,931.47
  5. Step 5: Solve for x
    x = 633,828,931.47/28,732.84
  6. Step 6: Final answer
    x = 22,059.39

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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.