Home / 30,313.36-45,472.60-9,258.12

Finding the Fourth Proportional to 30,313.36, 45,472.60 and 9,258.12

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Solution

The fourth proportional to 30,313.36, 45,472.60 and 9,258.12 is: 13,887.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,313.36 : 45,472.60 = 9,258.12 : x
  2. Step 2: Convert to fraction form
    30,313.36/45,472.60 = 9,258.12/x
  3. Step 3: Cross multiply
    30,313.36x = 45,472.60 × 9,258.12
  4. Step 4: Simplify right side
    30,313.36x = 420,990,787.51
  5. Step 5: Solve for x
    x = 420,990,787.51/30,313.36
  6. Step 6: Final answer
    x = 13,887.96

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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.