Home / 21,931.33-32,889.23-7,137.49

Finding the Fourth Proportional to 21,931.33, 32,889.23 and 7,137.49

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Solution

The fourth proportional to 21,931.33, 32,889.23 and 7,137.49 is: 10,703.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,931.33 : 32,889.23 = 7,137.49 : x
  2. Step 2: Convert to fraction form
    21,931.33/32,889.23 = 7,137.49/x
  3. Step 3: Cross multiply
    21,931.33x = 32,889.23 × 7,137.49
  4. Step 4: Simplify right side
    21,931.33x = 234,746,550.23
  5. Step 5: Solve for x
    x = 234,746,550.23/21,931.33
  6. Step 6: Final answer
    x = 10,703.71

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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.