Home / 20,225.31-30,316.04-10,351.05

Finding the Fourth Proportional to 20,225.31, 30,316.04 and 10,351.05

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Solution

The fourth proportional to 20,225.31, 30,316.04 and 10,351.05 is: 15,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.31 : 30,316.04 = 10,351.05 : x
  2. Step 2: Convert to fraction form
    20,225.31/30,316.04 = 10,351.05/x
  3. Step 3: Cross multiply
    20,225.31x = 30,316.04 × 10,351.05
  4. Step 4: Simplify right side
    20,225.31x = 313,802,845.84
  5. Step 5: Solve for x
    x = 313,802,845.84/20,225.31
  6. Step 6: Final answer
    x = 15,515.35

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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.