Home / 30,823.06-42,536.14-16,676.21

Finding the Fourth Proportional to 30,823.06, 42,536.14 and 16,676.21

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Solution

The fourth proportional to 30,823.06, 42,536.14 and 16,676.21 is: 23,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,823.06 : 42,536.14 = 16,676.21 : x
  2. Step 2: Convert to fraction form
    30,823.06/42,536.14 = 16,676.21/x
  3. Step 3: Cross multiply
    30,823.06x = 42,536.14 × 16,676.21
  4. Step 4: Simplify right side
    30,823.06x = 709,341,603.23
  5. Step 5: Solve for x
    x = 709,341,603.23/30,823.06
  6. Step 6: Final answer
    x = 23,013.34

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Double scale
Find fourth proportional to 30,824.06, 42,537.52 and 16,677.21
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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.