Home / 28,244.21-38,975.69-15,497.11

Finding the Fourth Proportional to 28,244.21, 38,975.69 and 15,497.11

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Solution

The fourth proportional to 28,244.21, 38,975.69 and 15,497.11 is: 21,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244.21 : 38,975.69 = 15,497.11 : x
  2. Step 2: Convert to fraction form
    28,244.21/38,975.69 = 15,497.11/x
  3. Step 3: Cross multiply
    28,244.21x = 38,975.69 × 15,497.11
  4. Step 4: Simplify right side
    28,244.21x = 604,010,496.56
  5. Step 5: Solve for x
    x = 604,010,496.56/28,244.21
  6. Step 6: Final answer
    x = 21,385.28

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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.