Home / 28,103.63-38,769.75-16,766.64

Finding the Fourth Proportional to 28,103.63, 38,769.75 and 16,766.64

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Solution

The fourth proportional to 28,103.63, 38,769.75 and 16,766.64 is: 23,130.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.63 : 38,769.75 = 16,766.64 : x
  2. Step 2: Convert to fraction form
    28,103.63/38,769.75 = 16,766.64/x
  3. Step 3: Cross multiply
    28,103.63x = 38,769.75 × 16,766.64
  4. Step 4: Simplify right side
    28,103.63x = 650,038,441.14
  5. Step 5: Solve for x
    x = 650,038,441.14/28,103.63
  6. Step 6: Final answer
    x = 23,130.06

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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.