Home / 28,010.49-38,641.89-18,932.94

Finding the Fourth Proportional to 28,010.49, 38,641.89 and 18,932.94

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Solution

The fourth proportional to 28,010.49, 38,641.89 and 18,932.94 is: 26,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.49 : 38,641.89 = 18,932.94 : x
  2. Step 2: Convert to fraction form
    28,010.49/38,641.89 = 18,932.94/x
  3. Step 3: Cross multiply
    28,010.49x = 38,641.89 × 18,932.94
  4. Step 4: Simplify right side
    28,010.49x = 731,604,584.86
  5. Step 5: Solve for x
    x = 731,604,584.86/28,010.49
  6. Step 6: Final answer
    x = 26,118.95

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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.