Home / 20,484.07-28,264.69-11,529.68

Finding the Fourth Proportional to 20,484.07, 28,264.69 and 11,529.68

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Solution

The fourth proportional to 20,484.07, 28,264.69 and 11,529.68 is: 15,909.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.07 : 28,264.69 = 11,529.68 : x
  2. Step 2: Convert to fraction form
    20,484.07/28,264.69 = 11,529.68/x
  3. Step 3: Cross multiply
    20,484.07x = 28,264.69 × 11,529.68
  4. Step 4: Simplify right side
    20,484.07x = 325,882,704.09
  5. Step 5: Solve for x
    x = 325,882,704.09/20,484.07
  6. Step 6: Final answer
    x = 15,909.08

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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.