Home / 21,615.24-32,424.69-6,820.19

Finding the Fourth Proportional to 21,615.24, 32,424.69 and 6,820.19

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Solution

The fourth proportional to 21,615.24, 32,424.69 and 6,820.19 is: 10,230.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.24 : 32,424.69 = 6,820.19 : x
  2. Step 2: Convert to fraction form
    21,615.24/32,424.69 = 6,820.19/x
  3. Step 3: Cross multiply
    21,615.24x = 32,424.69 × 6,820.19
  4. Step 4: Simplify right side
    21,615.24x = 221,142,546.49
  5. Step 5: Solve for x
    x = 221,142,546.49/21,615.24
  6. Step 6: Final answer
    x = 10,230.86

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1.5x scale

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.