Home / 28,742.68-39,664.02-16,168.12

Finding the Fourth Proportional to 28,742.68, 39,664.02 and 16,168.12

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Solution

The fourth proportional to 28,742.68, 39,664.02 and 16,168.12 is: 22,311.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.68 : 39,664.02 = 16,168.12 : x
  2. Step 2: Convert to fraction form
    28,742.68/39,664.02 = 16,168.12/x
  3. Step 3: Cross multiply
    28,742.68x = 39,664.02 × 16,168.12
  4. Step 4: Simplify right side
    28,742.68x = 641,292,635.04
  5. Step 5: Solve for x
    x = 641,292,635.04/28,742.68
  6. Step 6: Final answer
    x = 22,311.51

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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.