Home / 20,142.93-30,183.35-10,784.19

Finding the Fourth Proportional to 20,142.93, 30,183.35 and 10,784.19

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Solution

The fourth proportional to 20,142.93, 30,183.35 and 10,784.19 is: 16,159.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142.93 : 30,183.35 = 10,784.19 : x
  2. Step 2: Convert to fraction form
    20,142.93/30,183.35 = 10,784.19/x
  3. Step 3: Cross multiply
    20,142.93x = 30,183.35 × 10,784.19
  4. Step 4: Simplify right side
    20,142.93x = 325,502,927.32
  5. Step 5: Solve for x
    x = 325,502,927.32/20,142.93
  6. Step 6: Final answer
    x = 16,159.66

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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.