Home / 19,355.30-29,032.92-5,315.48

Finding the Fourth Proportional to 19,355.30, 29,032.92 and 5,315.48

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Solution

The fourth proportional to 19,355.30, 29,032.92 and 5,315.48 is: 7,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.30 : 29,032.92 = 5,315.48 : x
  2. Step 2: Convert to fraction form
    19,355.30/29,032.92 = 5,315.48/x
  3. Step 3: Cross multiply
    19,355.30x = 29,032.92 × 5,315.48
  4. Step 4: Simplify right side
    19,355.30x = 154,323,760.44
  5. Step 5: Solve for x
    x = 154,323,760.44/19,355.30
  6. Step 6: Final answer
    x = 7,973.21

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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.