Home / 28,143.49-42,173.46-15,646.32

Finding the Fourth Proportional to 28,143.49, 42,173.46 and 15,646.32

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Solution

The fourth proportional to 28,143.49, 42,173.46 and 15,646.32 is: 23,446.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143.49 : 42,173.46 = 15,646.32 : x
  2. Step 2: Convert to fraction form
    28,143.49/42,173.46 = 15,646.32/x
  3. Step 3: Cross multiply
    28,143.49x = 42,173.46 × 15,646.32
  4. Step 4: Simplify right side
    28,143.49x = 659,859,372.44
  5. Step 5: Solve for x
    x = 659,859,372.44/28,143.49
  6. Step 6: Final answer
    x = 23,446.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.