Home / 28,223.98-38,950.85-15,648.73

Finding the Fourth Proportional to 28,223.98, 38,950.85 and 15,648.73

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Solution

The fourth proportional to 28,223.98, 38,950.85 and 15,648.73 is: 21,596.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,223.98 : 38,950.85 = 15,648.73 : x
  2. Step 2: Convert to fraction form
    28,223.98/38,950.85 = 15,648.73/x
  3. Step 3: Cross multiply
    28,223.98x = 38,950.85 × 15,648.73
  4. Step 4: Simplify right side
    28,223.98x = 609,531,334.92
  5. Step 5: Solve for x
    x = 609,531,334.92/28,223.98
  6. Step 6: Final answer
    x = 21,596.22

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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.