Home / 20,573.10-30,897.30-18,838.08

Finding the Fourth Proportional to 20,573.10, 30,897.30 and 18,838.08

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Solution

The fourth proportional to 20,573.10, 30,897.30 and 18,838.08 is: 28,291.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.10 : 30,897.30 = 18,838.08 : x
  2. Step 2: Convert to fraction form
    20,573.10/30,897.30 = 18,838.08/x
  3. Step 3: Cross multiply
    20,573.10x = 30,897.30 × 18,838.08
  4. Step 4: Simplify right side
    20,573.10x = 582,045,809.18
  5. Step 5: Solve for x
    x = 582,045,809.18/20,573.10
  6. Step 6: Final answer
    x = 28,291.59

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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.