Home / 28,280.90-39,026.12-16,950.84

Finding the Fourth Proportional to 28,280.90, 39,026.12 and 16,950.84

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Solution

The fourth proportional to 28,280.90, 39,026.12 and 16,950.84 is: 23,391.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,280.90 : 39,026.12 = 16,950.84 : x
  2. Step 2: Convert to fraction form
    28,280.90/39,026.12 = 16,950.84/x
  3. Step 3: Cross multiply
    28,280.90x = 39,026.12 × 16,950.84
  4. Step 4: Simplify right side
    28,280.90x = 661,525,515.94
  5. Step 5: Solve for x
    x = 661,525,515.94/28,280.90
  6. Step 6: Final answer
    x = 23,391.25

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1.5x scale

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.