Home / 19,021.22-28,533.47-4,981.19

Finding the Fourth Proportional to 19,021.22, 28,533.47 and 4,981.19

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Solution

The fourth proportional to 19,021.22, 28,533.47 and 4,981.19 is: 7,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.22 : 28,533.47 = 4,981.19 : x
  2. Step 2: Convert to fraction form
    19,021.22/28,533.47 = 4,981.19/x
  3. Step 3: Cross multiply
    19,021.22x = 28,533.47 × 4,981.19
  4. Step 4: Simplify right side
    19,021.22x = 142,130,467.86
  5. Step 5: Solve for x
    x = 142,130,467.86/19,021.22
  6. Step 6: Final answer
    x = 7,472.21

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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.