Home / 28,168.04-38,869.22-16,835.30

Finding the Fourth Proportional to 28,168.04, 38,869.22 and 16,835.30

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Solution

The fourth proportional to 28,168.04, 38,869.22 and 16,835.30 is: 23,231.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.04 : 38,869.22 = 16,835.30 : x
  2. Step 2: Convert to fraction form
    28,168.04/38,869.22 = 16,835.30/x
  3. Step 3: Cross multiply
    28,168.04x = 38,869.22 × 16,835.30
  4. Step 4: Simplify right side
    28,168.04x = 654,374,979.47
  5. Step 5: Solve for x
    x = 654,374,979.47/28,168.04
  6. Step 6: Final answer
    x = 23,231.12

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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.