Home / 28,164.72-38,832.03-18,075.36

Finding the Fourth Proportional to 28,164.72, 38,832.03 and 18,075.36

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Solution

The fourth proportional to 28,164.72, 38,832.03 and 18,075.36 is: 24,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.72 : 38,832.03 = 18,075.36 : x
  2. Step 2: Convert to fraction form
    28,164.72/38,832.03 = 18,075.36/x
  3. Step 3: Cross multiply
    28,164.72x = 38,832.03 × 18,075.36
  4. Step 4: Simplify right side
    28,164.72x = 701,902,921.78
  5. Step 5: Solve for x
    x = 701,902,921.78/28,164.72
  6. Step 6: Final answer
    x = 24,921.35

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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.