Home / 30,982.21-42,746.31-17,553.18

Finding the Fourth Proportional to 30,982.21, 42,746.31 and 17,553.18

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Solution

The fourth proportional to 30,982.21, 42,746.31 and 17,553.18 is: 24,218.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,982.21 : 42,746.31 = 17,553.18 : x
  2. Step 2: Convert to fraction form
    30,982.21/42,746.31 = 17,553.18/x
  3. Step 3: Cross multiply
    30,982.21x = 42,746.31 × 17,553.18
  4. Step 4: Simplify right side
    30,982.21x = 750,333,673.77
  5. Step 5: Solve for x
    x = 750,333,673.77/30,982.21
  6. Step 6: Final answer
    x = 24,218.21

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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.