Home / 19,280.08-28,912.83-10,510.21

Finding the Fourth Proportional to 19,280.08, 28,912.83 and 10,510.21

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Solution

The fourth proportional to 19,280.08, 28,912.83 and 10,510.21 is: 15,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.08 : 28,912.83 = 10,510.21 : x
  2. Step 2: Convert to fraction form
    19,280.08/28,912.83 = 10,510.21/x
  3. Step 3: Cross multiply
    19,280.08x = 28,912.83 × 10,510.21
  4. Step 4: Simplify right side
    19,280.08x = 303,879,914.99
  5. Step 5: Solve for x
    x = 303,879,914.99/19,280.08
  6. Step 6: Final answer
    x = 15,761.34

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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.