Home / 21,421.37-32,133.42-6,629.05

Finding the Fourth Proportional to 21,421.37, 32,133.42 and 6,629.05

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Solution

The fourth proportional to 21,421.37, 32,133.42 and 6,629.05 is: 9,943.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,421.37 : 32,133.42 = 6,629.05 : x
  2. Step 2: Convert to fraction form
    21,421.37/32,133.42 = 6,629.05/x
  3. Step 3: Cross multiply
    21,421.37x = 32,133.42 × 6,629.05
  4. Step 4: Simplify right side
    21,421.37x = 213,013,967.52
  5. Step 5: Solve for x
    x = 213,013,967.52/21,421.37
  6. Step 6: Final answer
    x = 9,943.99

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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.