Home / 28,968.30-39,977.22-16,222

Finding the Fourth Proportional to 28,968.30, 39,977.22 and 16,222

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Solution

The fourth proportional to 28,968.30, 39,977.22 and 16,222 is: 22,386.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,968.30 : 39,977.22 = 16,222 : x
  2. Step 2: Convert to fraction form
    28,968.30/39,977.22 = 16,222/x
  3. Step 3: Cross multiply
    28,968.30x = 39,977.22 × 16,222
  4. Step 4: Simplify right side
    28,968.30x = 648,510,462.84
  5. Step 5: Solve for x
    x = 648,510,462.84/28,968.30
  6. Step 6: Final answer
    x = 22,386.90

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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.