Home / 20,158.42-30,242.49-19,823.68

Finding the Fourth Proportional to 20,158.42, 30,242.49 and 19,823.68

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Solution

The fourth proportional to 20,158.42, 30,242.49 and 19,823.68 is: 29,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158.42 : 30,242.49 = 19,823.68 : x
  2. Step 2: Convert to fraction form
    20,158.42/30,242.49 = 19,823.68/x
  3. Step 3: Cross multiply
    20,158.42x = 30,242.49 × 19,823.68
  4. Step 4: Simplify right side
    20,158.42x = 599,517,444.16
  5. Step 5: Solve for x
    x = 599,517,444.16/20,158.42
  6. Step 6: Final answer
    x = 29,740.30

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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.