Home / 28,204.40-42,308.04-7,427.36

Finding the Fourth Proportional to 28,204.40, 42,308.04 and 7,427.36

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Solution

The fourth proportional to 28,204.40, 42,308.04 and 7,427.36 is: 11,141.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,204.40 : 42,308.04 = 7,427.36 : x
  2. Step 2: Convert to fraction form
    28,204.40/42,308.04 = 7,427.36/x
  3. Step 3: Cross multiply
    28,204.40x = 42,308.04 × 7,427.36
  4. Step 4: Simplify right side
    28,204.40x = 314,237,043.97
  5. Step 5: Solve for x
    x = 314,237,043.97/28,204.40
  6. Step 6: Final answer
    x = 11,141.42

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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.