Home / 28,377.72-42,573.36-12,795.30

Finding the Fourth Proportional to 28,377.72, 42,573.36 and 12,795.30

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Solution

The fourth proportional to 28,377.72, 42,573.36 and 12,795.30 is: 19,196.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,377.72 : 42,573.36 = 12,795.30 : x
  2. Step 2: Convert to fraction form
    28,377.72/42,573.36 = 12,795.30/x
  3. Step 3: Cross multiply
    28,377.72x = 42,573.36 × 12,795.30
  4. Step 4: Simplify right side
    28,377.72x = 544,738,913.21
  5. Step 5: Solve for x
    x = 544,738,913.21/28,377.72
  6. Step 6: Final answer
    x = 19,196.01

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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.