Home / 20,835.07-28,752.17-11,274.74

Finding the Fourth Proportional to 20,835.07, 28,752.17 and 11,274.74

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Solution

The fourth proportional to 20,835.07, 28,752.17 and 11,274.74 is: 15,559.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,835.07 : 28,752.17 = 11,274.74 : x
  2. Step 2: Convert to fraction form
    20,835.07/28,752.17 = 11,274.74/x
  3. Step 3: Cross multiply
    20,835.07x = 28,752.17 × 11,274.74
  4. Step 4: Simplify right side
    20,835.07x = 324,173,374.02
  5. Step 5: Solve for x
    x = 324,173,374.02/20,835.07
  6. Step 6: Final answer
    x = 15,559.03

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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.