Home / 19,291.36-28,938.72-5,440.48

Finding the Fourth Proportional to 19,291.36, 28,938.72 and 5,440.48

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Solution

The fourth proportional to 19,291.36, 28,938.72 and 5,440.48 is: 8,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,291.36 : 28,938.72 = 5,440.48 : x
  2. Step 2: Convert to fraction form
    19,291.36/28,938.72 = 5,440.48/x
  3. Step 3: Cross multiply
    19,291.36x = 28,938.72 × 5,440.48
  4. Step 4: Simplify right side
    19,291.36x = 157,440,527.39
  5. Step 5: Solve for x
    x = 157,440,527.39/19,291.36
  6. Step 6: Final answer
    x = 8,161.19

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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.