Home / 28,702.72-43,073.52-15,559.36

Finding the Fourth Proportional to 28,702.72, 43,073.52 and 15,559.36

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Solution

The fourth proportional to 28,702.72, 43,073.52 and 15,559.36 is: 23,349.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,702.72 : 43,073.52 = 15,559.36 : x
  2. Step 2: Convert to fraction form
    28,702.72/43,073.52 = 15,559.36/x
  3. Step 3: Cross multiply
    28,702.72x = 43,073.52 × 15,559.36
  4. Step 4: Simplify right side
    28,702.72x = 670,196,404.15
  5. Step 5: Solve for x
    x = 670,196,404.15/28,702.72
  6. Step 6: Final answer
    x = 23,349.58

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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.