Home / 27,683.18-38,203.68-15,746.21

Finding the Fourth Proportional to 27,683.18, 38,203.68 and 15,746.21

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Solution

The fourth proportional to 27,683.18, 38,203.68 and 15,746.21 is: 21,730.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,683.18 : 38,203.68 = 15,746.21 : x
  2. Step 2: Convert to fraction form
    27,683.18/38,203.68 = 15,746.21/x
  3. Step 3: Cross multiply
    27,683.18x = 38,203.68 × 15,746.21
  4. Step 4: Simplify right side
    27,683.18x = 601,562,977.03
  5. Step 5: Solve for x
    x = 601,562,977.03/27,683.18
  6. Step 6: Final answer
    x = 21,730.27

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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.