Home / 22,683.75-31,220.96-19,977.21

Finding the Fourth Proportional to 22,683.75, 31,220.96 and 19,977.21

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Solution

The fourth proportional to 22,683.75, 31,220.96 and 19,977.21 is: 27,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,683.75 : 31,220.96 = 19,977.21 : x
  2. Step 2: Convert to fraction form
    22,683.75/31,220.96 = 19,977.21/x
  3. Step 3: Cross multiply
    22,683.75x = 31,220.96 × 19,977.21
  4. Step 4: Simplify right side
    22,683.75x = 623,707,574.44
  5. Step 5: Solve for x
    x = 623,707,574.44/22,683.75
  6. Step 6: Final answer
    x = 27,495.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.