Home / 38,628.39-53,302.77-21,630.27

Finding the Fourth Proportional to 38,628.39, 53,302.77 and 21,630.27

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Solution

The fourth proportional to 38,628.39, 53,302.77 and 21,630.27 is: 29,847.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,628.39 : 53,302.77 = 21,630.27 : x
  2. Step 2: Convert to fraction form
    38,628.39/53,302.77 = 21,630.27/x
  3. Step 3: Cross multiply
    38,628.39x = 53,302.77 × 21,630.27
  4. Step 4: Simplify right side
    38,628.39x = 1,152,952,932.18
  5. Step 5: Solve for x
    x = 1,152,952,932.18/38,628.39
  6. Step 6: Final answer
    x = 29,847.30

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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.