Home / 28,410.06-39,276.74-21,324.18

Finding the Fourth Proportional to 28,410.06, 39,276.74 and 21,324.18

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Solution

The fourth proportional to 28,410.06, 39,276.74 and 21,324.18 is: 29,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410.06 : 39,276.74 = 21,324.18 : x
  2. Step 2: Convert to fraction form
    28,410.06/39,276.74 = 21,324.18/x
  3. Step 3: Cross multiply
    28,410.06x = 39,276.74 × 21,324.18
  4. Step 4: Simplify right side
    28,410.06x = 837,544,273.57
  5. Step 5: Solve for x
    x = 837,544,273.57/28,410.06
  6. Step 6: Final answer
    x = 29,480.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.