Home / 28,242.09-42,314.54-19,907.19

Finding the Fourth Proportional to 28,242.09, 42,314.54 and 19,907.19

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Solution

The fourth proportional to 28,242.09, 42,314.54 and 19,907.19 is: 29,826.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.09 : 42,314.54 = 19,907.19 : x
  2. Step 2: Convert to fraction form
    28,242.09/42,314.54 = 19,907.19/x
  3. Step 3: Cross multiply
    28,242.09x = 42,314.54 × 19,907.19
  4. Step 4: Simplify right side
    28,242.09x = 842,363,488.01
  5. Step 5: Solve for x
    x = 842,363,488.01/28,242.09
  6. Step 6: Final answer
    x = 29,826.53

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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.