Home / 30,258.72-45,372.24-17,782.56

Finding the Fourth Proportional to 30,258.72, 45,372.24 and 17,782.56

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Solution

The fourth proportional to 30,258.72, 45,372.24 and 17,782.56 is: 26,664.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,258.72 : 45,372.24 = 17,782.56 : x
  2. Step 2: Convert to fraction form
    30,258.72/45,372.24 = 17,782.56/x
  3. Step 3: Cross multiply
    30,258.72x = 45,372.24 × 17,782.56
  4. Step 4: Simplify right side
    30,258.72x = 806,834,580.13
  5. Step 5: Solve for x
    x = 806,834,580.13/30,258.72
  6. Step 6: Final answer
    x = 26,664.53

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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.