Home / 39,703.33-54,790.32-21,798.64

Finding the Fourth Proportional to 39,703.33, 54,790.32 and 21,798.64

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Solution

The fourth proportional to 39,703.33, 54,790.32 and 21,798.64 is: 30,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,703.33 : 54,790.32 = 21,798.64 : x
  2. Step 2: Convert to fraction form
    39,703.33/54,790.32 = 21,798.64/x
  3. Step 3: Cross multiply
    39,703.33x = 54,790.32 × 21,798.64
  4. Step 4: Simplify right side
    39,703.33x = 1,194,354,461.16
  5. Step 5: Solve for x
    x = 1,194,354,461.16/39,703.33
  6. Step 6: Final answer
    x = 30,081.97

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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.