Home / 28,473.06-39,292.82-15,897.80

Finding the Fourth Proportional to 28,473.06, 39,292.82 and 15,897.80

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Solution

The fourth proportional to 28,473.06, 39,292.82 and 15,897.80 is: 21,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473.06 : 39,292.82 = 15,897.80 : x
  2. Step 2: Convert to fraction form
    28,473.06/39,292.82 = 15,897.80/x
  3. Step 3: Cross multiply
    28,473.06x = 39,292.82 × 15,897.80
  4. Step 4: Simplify right side
    28,473.06x = 624,669,393.80
  5. Step 5: Solve for x
    x = 624,669,393.80/28,473.06
  6. Step 6: Final answer
    x = 21,938.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.