Home / 28,213.79-42,284.23-13,427.24

Finding the Fourth Proportional to 28,213.79, 42,284.23 and 13,427.24

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Solution

The fourth proportional to 28,213.79, 42,284.23 and 13,427.24 is: 20,123.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.79 : 42,284.23 = 13,427.24 : x
  2. Step 2: Convert to fraction form
    28,213.79/42,284.23 = 13,427.24/x
  3. Step 3: Cross multiply
    28,213.79x = 42,284.23 × 13,427.24
  4. Step 4: Simplify right side
    28,213.79x = 567,760,259.44
  5. Step 5: Solve for x
    x = 567,760,259.44/28,213.79
  6. Step 6: Final answer
    x = 20,123.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.