Home / 30,697.40-42,362.36-17,268.67

Finding the Fourth Proportional to 30,697.40, 42,362.36 and 17,268.67

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Solution

The fourth proportional to 30,697.40, 42,362.36 and 17,268.67 is: 23,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,697.40 : 42,362.36 = 17,268.67 : x
  2. Step 2: Convert to fraction form
    30,697.40/42,362.36 = 17,268.67/x
  3. Step 3: Cross multiply
    30,697.40x = 42,362.36 × 17,268.67
  4. Step 4: Simplify right side
    30,697.40x = 731,541,519.14
  5. Step 5: Solve for x
    x = 731,541,519.14/30,697.40
  6. Step 6: Final answer
    x = 23,830.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.