Home / 28,012.42-38,640.14-16,674.34

Finding the Fourth Proportional to 28,012.42, 38,640.14 and 16,674.34

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Solution

The fourth proportional to 28,012.42, 38,640.14 and 16,674.34 is: 23,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012.42 : 38,640.14 = 16,674.34 : x
  2. Step 2: Convert to fraction form
    28,012.42/38,640.14 = 16,674.34/x
  3. Step 3: Cross multiply
    28,012.42x = 38,640.14 × 16,674.34
  4. Step 4: Simplify right side
    28,012.42x = 644,298,652.04
  5. Step 5: Solve for x
    x = 644,298,652.04/28,012.42
  6. Step 6: Final answer
    x = 23,000.47

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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.