Home / 28,005.90-38,654.73-17,403.54

Finding the Fourth Proportional to 28,005.90, 38,654.73 and 17,403.54

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Solution

The fourth proportional to 28,005.90, 38,654.73 and 17,403.54 is: 24,020.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.90 : 38,654.73 = 17,403.54 : x
  2. Step 2: Convert to fraction form
    28,005.90/38,654.73 = 17,403.54/x
  3. Step 3: Cross multiply
    28,005.90x = 38,654.73 × 17,403.54
  4. Step 4: Simplify right side
    28,005.90x = 672,729,139.74
  5. Step 5: Solve for x
    x = 672,729,139.74/28,005.90
  6. Step 6: Final answer
    x = 24,020.98

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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.