Home / 28,283.44-39,024.12-15,705.04

Finding the Fourth Proportional to 28,283.44, 39,024.12 and 15,705.04

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Solution

The fourth proportional to 28,283.44, 39,024.12 and 15,705.04 is: 21,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283.44 : 39,024.12 = 15,705.04 : x
  2. Step 2: Convert to fraction form
    28,283.44/39,024.12 = 15,705.04/x
  3. Step 3: Cross multiply
    28,283.44x = 39,024.12 × 15,705.04
  4. Step 4: Simplify right side
    28,283.44x = 612,875,365.56
  5. Step 5: Solve for x
    x = 612,875,365.56/28,283.44
  6. Step 6: Final answer
    x = 21,669.05

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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.