Home / 21,946.74-32,921.18-7,155.64

Finding the Fourth Proportional to 21,946.74, 32,921.18 and 7,155.64

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Solution

The fourth proportional to 21,946.74, 32,921.18 and 7,155.64 is: 10,733.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.74 : 32,921.18 = 7,155.64 : x
  2. Step 2: Convert to fraction form
    21,946.74/32,921.18 = 7,155.64/x
  3. Step 3: Cross multiply
    21,946.74x = 32,921.18 × 7,155.64
  4. Step 4: Simplify right side
    21,946.74x = 235,571,912.07
  5. Step 5: Solve for x
    x = 235,571,912.07/21,946.74
  6. Step 6: Final answer
    x = 10,733.80

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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.