Home / 50,010.34-75,015.59-20,428.18

Finding the Fourth Proportional to 50,010.34, 75,015.59 and 20,428.18

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Solution

The fourth proportional to 50,010.34, 75,015.59 and 20,428.18 is: 30,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,010.34 : 75,015.59 = 20,428.18 : x
  2. Step 2: Convert to fraction form
    50,010.34/75,015.59 = 20,428.18/x
  3. Step 3: Cross multiply
    50,010.34x = 75,015.59 × 20,428.18
  4. Step 4: Simplify right side
    50,010.34x = 1,532,431,651.32
  5. Step 5: Solve for x
    x = 1,532,431,651.32/50,010.34
  6. Step 6: Final answer
    x = 30,642.30

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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.