Home / 28,222.04-42,340.12-19,918.26

Finding the Fourth Proportional to 28,222.04, 42,340.12 and 19,918.26

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Solution

The fourth proportional to 28,222.04, 42,340.12 and 19,918.26 is: 29,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.04 : 42,340.12 = 19,918.26 : x
  2. Step 2: Convert to fraction form
    28,222.04/42,340.12 = 19,918.26/x
  3. Step 3: Cross multiply
    28,222.04x = 42,340.12 × 19,918.26
  4. Step 4: Simplify right side
    28,222.04x = 843,341,518.59
  5. Step 5: Solve for x
    x = 843,341,518.59/28,222.04
  6. Step 6: Final answer
    x = 29,882.37

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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.