Home / 19,570.36-29,355.16-4,778.88

Finding the Fourth Proportional to 19,570.36, 29,355.16 and 4,778.88

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Solution

The fourth proportional to 19,570.36, 29,355.16 and 4,778.88 is: 7,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,570.36 : 29,355.16 = 4,778.88 : x
  2. Step 2: Convert to fraction form
    19,570.36/29,355.16 = 4,778.88/x
  3. Step 3: Cross multiply
    19,570.36x = 29,355.16 × 4,778.88
  4. Step 4: Simplify right side
    19,570.36x = 140,284,787.02
  5. Step 5: Solve for x
    x = 140,284,787.02/19,570.36
  6. Step 6: Final answer
    x = 7,168.23

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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.