Home / 22,899.98-31,603.56-12,829.28

Finding the Fourth Proportional to 22,899.98, 31,603.56 and 12,829.28

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Solution

The fourth proportional to 22,899.98, 31,603.56 and 12,829.28 is: 17,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,899.98 : 31,603.56 = 12,829.28 : x
  2. Step 2: Convert to fraction form
    22,899.98/31,603.56 = 12,829.28/x
  3. Step 3: Cross multiply
    22,899.98x = 31,603.56 × 12,829.28
  4. Step 4: Simplify right side
    22,899.98x = 405,450,920.24
  5. Step 5: Solve for x
    x = 405,450,920.24/22,899.98
  6. Step 6: Final answer
    x = 17,705.30

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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.