Home / 21,830.23-32,768.25-19,347.30

Finding the Fourth Proportional to 21,830.23, 32,768.25 and 19,347.30

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Solution

The fourth proportional to 21,830.23, 32,768.25 and 19,347.30 is: 29,041.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,830.23 : 32,768.25 = 19,347.30 : x
  2. Step 2: Convert to fraction form
    21,830.23/32,768.25 = 19,347.30/x
  3. Step 3: Cross multiply
    21,830.23x = 32,768.25 × 19,347.30
  4. Step 4: Simplify right side
    21,830.23x = 633,977,163.23
  5. Step 5: Solve for x
    x = 633,977,163.23/21,830.23
  6. Step 6: Final answer
    x = 29,041.25

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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.