Home / 30,723.06-42,403.23-29,320.66

Finding the Fourth Proportional to 30,723.06, 42,403.23 and 29,320.66

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Solution

The fourth proportional to 30,723.06, 42,403.23 and 29,320.66 is: 40,467.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,723.06 : 42,403.23 = 29,320.66 : x
  2. Step 2: Convert to fraction form
    30,723.06/42,403.23 = 29,320.66/x
  3. Step 3: Cross multiply
    30,723.06x = 42,403.23 × 29,320.66
  4. Step 4: Simplify right side
    30,723.06x = 1,243,290,583.72
  5. Step 5: Solve for x
    x = 1,243,290,583.72/30,723.06
  6. Step 6: Final answer
    x = 40,467.67

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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.