Home / 19,312.31-28,971.60-5,982.19

Finding the Fourth Proportional to 19,312.31, 28,971.60 and 5,982.19

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Solution

The fourth proportional to 19,312.31, 28,971.60 and 5,982.19 is: 8,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,312.31 : 28,971.60 = 5,982.19 : x
  2. Step 2: Convert to fraction form
    19,312.31/28,971.60 = 5,982.19/x
  3. Step 3: Cross multiply
    19,312.31x = 28,971.60 × 5,982.19
  4. Step 4: Simplify right side
    19,312.31x = 173,313,615.80
  5. Step 5: Solve for x
    x = 173,313,615.80/19,312.31
  6. Step 6: Final answer
    x = 8,974.26

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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.