Home / 30,912.16-42,652.56-19,586.08

Finding the Fourth Proportional to 30,912.16, 42,652.56 and 19,586.08

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Solution

The fourth proportional to 30,912.16, 42,652.56 and 19,586.08 is: 27,024.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,912.16 : 42,652.56 = 19,586.08 : x
  2. Step 2: Convert to fraction form
    30,912.16/42,652.56 = 19,586.08/x
  3. Step 3: Cross multiply
    30,912.16x = 42,652.56 × 19,586.08
  4. Step 4: Simplify right side
    30,912.16x = 835,396,452.36
  5. Step 5: Solve for x
    x = 835,396,452.36/30,912.16
  6. Step 6: Final answer
    x = 27,024.85

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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.