Home / 21,764.48-30,023.93-14,215.23

Finding the Fourth Proportional to 21,764.48, 30,023.93 and 14,215.23

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Solution

The fourth proportional to 21,764.48, 30,023.93 and 14,215.23 is: 19,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.48 : 30,023.93 = 14,215.23 : x
  2. Step 2: Convert to fraction form
    21,764.48/30,023.93 = 14,215.23/x
  3. Step 3: Cross multiply
    21,764.48x = 30,023.93 × 14,215.23
  4. Step 4: Simplify right side
    21,764.48x = 426,797,262.64
  5. Step 5: Solve for x
    x = 426,797,262.64/21,764.48
  6. Step 6: Final answer
    x = 19,609.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.