Home / 21,972.67-32,964.63-6,390.30

Finding the Fourth Proportional to 21,972.67, 32,964.63 and 6,390.30

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Solution

The fourth proportional to 21,972.67, 32,964.63 and 6,390.30 is: 9,587.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,972.67 : 32,964.63 = 6,390.30 : x
  2. Step 2: Convert to fraction form
    21,972.67/32,964.63 = 6,390.30/x
  3. Step 3: Cross multiply
    21,972.67x = 32,964.63 × 6,390.30
  4. Step 4: Simplify right side
    21,972.67x = 210,653,875.09
  5. Step 5: Solve for x
    x = 210,653,875.09/21,972.67
  6. Step 6: Final answer
    x = 9,587.09

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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.