Home / 28,721.12-43,093.54-12,702.22

Finding the Fourth Proportional to 28,721.12, 43,093.54 and 12,702.22

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Solution

The fourth proportional to 28,721.12, 43,093.54 and 12,702.22 is: 19,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.12 : 43,093.54 = 12,702.22 : x
  2. Step 2: Convert to fraction form
    28,721.12/43,093.54 = 12,702.22/x
  3. Step 3: Cross multiply
    28,721.12x = 43,093.54 × 12,702.22
  4. Step 4: Simplify right side
    28,721.12x = 547,383,569.53
  5. Step 5: Solve for x
    x = 547,383,569.53/28,721.12
  6. Step 6: Final answer
    x = 19,058.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.