Home / 21,276.76-31,915.56-5,694.24

Finding the Fourth Proportional to 21,276.76, 31,915.56 and 5,694.24

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Solution

The fourth proportional to 21,276.76, 31,915.56 and 5,694.24 is: 8,541.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.76 : 31,915.56 = 5,694.24 : x
  2. Step 2: Convert to fraction form
    21,276.76/31,915.56 = 5,694.24/x
  3. Step 3: Cross multiply
    21,276.76x = 31,915.56 × 5,694.24
  4. Step 4: Simplify right side
    21,276.76x = 181,734,858.37
  5. Step 5: Solve for x
    x = 181,734,858.37/21,276.76
  6. Step 6: Final answer
    x = 8,541.47

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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.