Home / 30,615.86-45,927.76-21,110.52

Finding the Fourth Proportional to 30,615.86, 45,927.76 and 21,110.52

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Solution

The fourth proportional to 30,615.86, 45,927.76 and 21,110.52 is: 31,668.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,615.86 : 45,927.76 = 21,110.52 : x
  2. Step 2: Convert to fraction form
    30,615.86/45,927.76 = 21,110.52/x
  3. Step 3: Cross multiply
    30,615.86x = 45,927.76 × 21,110.52
  4. Step 4: Simplify right side
    30,615.86x = 969,558,896.04
  5. Step 5: Solve for x
    x = 969,558,896.04/30,615.86
  6. Step 6: Final answer
    x = 31,668.52

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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.