Home / 28,617.30-39,492.90-16,678.71

Finding the Fourth Proportional to 28,617.30, 39,492.90 and 16,678.71

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Solution

The fourth proportional to 28,617.30, 39,492.90 and 16,678.71 is: 23,017.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.30 : 39,492.90 = 16,678.71 : x
  2. Step 2: Convert to fraction form
    28,617.30/39,492.90 = 16,678.71/x
  3. Step 3: Cross multiply
    28,617.30x = 39,492.90 × 16,678.71
  4. Step 4: Simplify right side
    28,617.30x = 658,690,626.16
  5. Step 5: Solve for x
    x = 658,690,626.16/28,617.30
  6. Step 6: Final answer
    x = 23,017.22

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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.