Home / 19,812.23-29,711.26-9,280.45

Finding the Fourth Proportional to 19,812.23, 29,711.26 and 9,280.45

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Solution

The fourth proportional to 19,812.23, 29,711.26 and 9,280.45 is: 13,917.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,812.23 : 29,711.26 = 9,280.45 : x
  2. Step 2: Convert to fraction form
    19,812.23/29,711.26 = 9,280.45/x
  3. Step 3: Cross multiply
    19,812.23x = 29,711.26 × 9,280.45
  4. Step 4: Simplify right side
    19,812.23x = 275,733,862.87
  5. Step 5: Solve for x
    x = 275,733,862.87/19,812.23
  6. Step 6: Final answer
    x = 13,917.36

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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.