Home / 30,719.96-46,020.83-18,839.05

Finding the Fourth Proportional to 30,719.96, 46,020.83 and 18,839.05

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Solution

The fourth proportional to 30,719.96, 46,020.83 and 18,839.05 is: 28,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,719.96 : 46,020.83 = 18,839.05 : x
  2. Step 2: Convert to fraction form
    30,719.96/46,020.83 = 18,839.05/x
  3. Step 3: Cross multiply
    30,719.96x = 46,020.83 × 18,839.05
  4. Step 4: Simplify right side
    30,719.96x = 866,988,508.16
  5. Step 5: Solve for x
    x = 866,988,508.16/30,719.96
  6. Step 6: Final answer
    x = 28,222.32

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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.