Home / 30,127.34-41,581.55-17,388.78

Finding the Fourth Proportional to 30,127.34, 41,581.55 and 17,388.78

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Solution

The fourth proportional to 30,127.34, 41,581.55 and 17,388.78 is: 23,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,127.34 : 41,581.55 = 17,388.78 : x
  2. Step 2: Convert to fraction form
    30,127.34/41,581.55 = 17,388.78/x
  3. Step 3: Cross multiply
    30,127.34x = 41,581.55 × 17,388.78
  4. Step 4: Simplify right side
    30,127.34x = 723,052,312.55
  5. Step 5: Solve for x
    x = 723,052,312.55/30,127.34
  6. Step 6: Final answer
    x = 23,999.87

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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.