Home / 28,144.44-38,840.24-15,569.19

Finding the Fourth Proportional to 28,144.44, 38,840.24 and 15,569.19

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Solution

The fourth proportional to 28,144.44, 38,840.24 and 15,569.19 is: 21,485.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.44 : 38,840.24 = 15,569.19 : x
  2. Step 2: Convert to fraction form
    28,144.44/38,840.24 = 15,569.19/x
  3. Step 3: Cross multiply
    28,144.44x = 38,840.24 × 15,569.19
  4. Step 4: Simplify right side
    28,144.44x = 604,711,076.21
  5. Step 5: Solve for x
    x = 604,711,076.21/28,144.44
  6. Step 6: Final answer
    x = 21,485.99

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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.