Home / 19,483.21-29,280.09-18,155.22

Finding the Fourth Proportional to 19,483.21, 29,280.09 and 18,155.22

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Solution

The fourth proportional to 19,483.21, 29,280.09 and 18,155.22 is: 27,284.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,483.21 : 29,280.09 = 18,155.22 : x
  2. Step 2: Convert to fraction form
    19,483.21/29,280.09 = 18,155.22/x
  3. Step 3: Cross multiply
    19,483.21x = 29,280.09 × 18,155.22
  4. Step 4: Simplify right side
    19,483.21x = 531,586,475.57
  5. Step 5: Solve for x
    x = 531,586,475.57/19,483.21
  6. Step 6: Final answer
    x = 27,284.34

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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.