Home / 30,290.36-45,406.38-18,606.92

Finding the Fourth Proportional to 30,290.36, 45,406.38 and 18,606.92

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Solution

The fourth proportional to 30,290.36, 45,406.38 and 18,606.92 is: 27,892.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.36 : 45,406.38 = 18,606.92 : x
  2. Step 2: Convert to fraction form
    30,290.36/45,406.38 = 18,606.92/x
  3. Step 3: Cross multiply
    30,290.36x = 45,406.38 × 18,606.92
  4. Step 4: Simplify right side
    30,290.36x = 844,872,880.15
  5. Step 5: Solve for x
    x = 844,872,880.15/30,290.36
  6. Step 6: Final answer
    x = 27,892.47

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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.