Home / 28,450.16-39,261.04-15,529.44

Finding the Fourth Proportional to 28,450.16, 39,261.04 and 15,529.44

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Solution

The fourth proportional to 28,450.16, 39,261.04 and 15,529.44 is: 21,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,450.16 : 39,261.04 = 15,529.44 : x
  2. Step 2: Convert to fraction form
    28,450.16/39,261.04 = 15,529.44/x
  3. Step 3: Cross multiply
    28,450.16x = 39,261.04 × 15,529.44
  4. Step 4: Simplify right side
    28,450.16x = 609,701,965.02
  5. Step 5: Solve for x
    x = 609,701,965.02/28,450.16
  6. Step 6: Final answer
    x = 21,430.53

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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.