Home / 21,015.83-31,526.78-6,222.80

Finding the Fourth Proportional to 21,015.83, 31,526.78 and 6,222.80

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Solution

The fourth proportional to 21,015.83, 31,526.78 and 6,222.80 is: 9,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.83 : 31,526.78 = 6,222.80 : x
  2. Step 2: Convert to fraction form
    21,015.83/31,526.78 = 6,222.80/x
  3. Step 3: Cross multiply
    21,015.83x = 31,526.78 × 6,222.80
  4. Step 4: Simplify right side
    21,015.83x = 196,184,657.84
  5. Step 5: Solve for x
    x = 196,184,657.84/21,015.83
  6. Step 6: Final answer
    x = 9,335.09

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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.