Home / 20,307.54-30,387.45-16,764.60

Finding the Fourth Proportional to 20,307.54, 30,387.45 and 16,764.60

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Solution

The fourth proportional to 20,307.54, 30,387.45 and 16,764.60 is: 25,085.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.54 : 30,387.45 = 16,764.60 : x
  2. Step 2: Convert to fraction form
    20,307.54/30,387.45 = 16,764.60/x
  3. Step 3: Cross multiply
    20,307.54x = 30,387.45 × 16,764.60
  4. Step 4: Simplify right side
    20,307.54x = 509,433,444.27
  5. Step 5: Solve for x
    x = 509,433,444.27/20,307.54
  6. Step 6: Final answer
    x = 25,085.93

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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.