Home / 20,484.51-28,264.59-11,532.39

Finding the Fourth Proportional to 20,484.51, 28,264.59 and 11,532.39

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Solution

The fourth proportional to 20,484.51, 28,264.59 and 11,532.39 is: 15,912.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.51 : 28,264.59 = 11,532.39 : x
  2. Step 2: Convert to fraction form
    20,484.51/28,264.59 = 11,532.39/x
  3. Step 3: Cross multiply
    20,484.51x = 28,264.59 × 11,532.39
  4. Step 4: Simplify right side
    20,484.51x = 325,958,275.07
  5. Step 5: Solve for x
    x = 325,958,275.07/20,484.51
  6. Step 6: Final answer
    x = 15,912.43

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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.