Home / 20,256.07-27,951.56-12,699.99

Finding the Fourth Proportional to 20,256.07, 27,951.56 and 12,699.99

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Solution

The fourth proportional to 20,256.07, 27,951.56 and 12,699.99 is: 17,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.07 : 27,951.56 = 12,699.99 : x
  2. Step 2: Convert to fraction form
    20,256.07/27,951.56 = 12,699.99/x
  3. Step 3: Cross multiply
    20,256.07x = 27,951.56 × 12,699.99
  4. Step 4: Simplify right side
    20,256.07x = 354,984,364.17
  5. Step 5: Solve for x
    x = 354,984,364.17/20,256.07
  6. Step 6: Final answer
    x = 17,524.84

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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.