Home / 21,935.36-32,907.48-7,140.31

Finding the Fourth Proportional to 21,935.36, 32,907.48 and 7,140.31

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Solution

The fourth proportional to 21,935.36, 32,907.48 and 7,140.31 is: 10,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.36 : 32,907.48 = 7,140.31 : x
  2. Step 2: Convert to fraction form
    21,935.36/32,907.48 = 7,140.31/x
  3. Step 3: Cross multiply
    21,935.36x = 32,907.48 × 7,140.31
  4. Step 4: Simplify right side
    21,935.36x = 234,969,443.98
  5. Step 5: Solve for x
    x = 234,969,443.98/21,935.36
  6. Step 6: Final answer
    x = 10,711.90

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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.