Home / 28,664.35-39,555.48-15,918.34

Finding the Fourth Proportional to 28,664.35, 39,555.48 and 15,918.34

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Solution

The fourth proportional to 28,664.35, 39,555.48 and 15,918.34 is: 21,966.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.35 : 39,555.48 = 15,918.34 : x
  2. Step 2: Convert to fraction form
    28,664.35/39,555.48 = 15,918.34/x
  3. Step 3: Cross multiply
    28,664.35x = 39,555.48 × 15,918.34
  4. Step 4: Simplify right side
    28,664.35x = 629,657,499.91
  5. Step 5: Solve for x
    x = 629,657,499.91/28,664.35
  6. Step 6: Final answer
    x = 21,966.57

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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.