Home / 30,002.06-41,410.85-18,665.12

Finding the Fourth Proportional to 30,002.06, 41,410.85 and 18,665.12

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Solution

The fourth proportional to 30,002.06, 41,410.85 and 18,665.12 is: 25,762.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.06 : 41,410.85 = 18,665.12 : x
  2. Step 2: Convert to fraction form
    30,002.06/41,410.85 = 18,665.12/x
  3. Step 3: Cross multiply
    30,002.06x = 41,410.85 × 18,665.12
  4. Step 4: Simplify right side
    30,002.06x = 772,938,494.75
  5. Step 5: Solve for x
    x = 772,938,494.75/30,002.06
  6. Step 6: Final answer
    x = 25,762.85

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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.