Home / 38,628.63-57,942.95-21,088.89

Finding the Fourth Proportional to 38,628.63, 57,942.95 and 21,088.89

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Solution

The fourth proportional to 38,628.63, 57,942.95 and 21,088.89 is: 31,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,628.63 : 57,942.95 = 21,088.89 : x
  2. Step 2: Convert to fraction form
    38,628.63/57,942.95 = 21,088.89/x
  3. Step 3: Cross multiply
    38,628.63x = 57,942.95 × 21,088.89
  4. Step 4: Simplify right side
    38,628.63x = 1,221,952,393.38
  5. Step 5: Solve for x
    x = 1,221,952,393.38/38,628.63
  6. Step 6: Final answer
    x = 31,633.34

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Similar ratio
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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.