Home / 28,000.98-41,986.88-13,205.92

Finding the Fourth Proportional to 28,000.98, 41,986.88 and 13,205.92

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Solution

The fourth proportional to 28,000.98, 41,986.88 and 13,205.92 is: 19,802.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.98 : 41,986.88 = 13,205.92 : x
  2. Step 2: Convert to fraction form
    28,000.98/41,986.88 = 13,205.92/x
  3. Step 3: Cross multiply
    28,000.98x = 41,986.88 × 13,205.92
  4. Step 4: Simplify right side
    28,000.98x = 554,475,378.33
  5. Step 5: Solve for x
    x = 554,475,378.33/28,000.98
  6. Step 6: Final answer
    x = 19,802.00

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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.