Home / 20,475.84-28,256.76-11,523.48

Finding the Fourth Proportional to 20,475.84, 28,256.76 and 11,523.48

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Solution

The fourth proportional to 20,475.84, 28,256.76 and 11,523.48 is: 15,902.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475.84 : 28,256.76 = 11,523.48 : x
  2. Step 2: Convert to fraction form
    20,475.84/28,256.76 = 11,523.48/x
  3. Step 3: Cross multiply
    20,475.84x = 28,256.76 × 11,523.48
  4. Step 4: Simplify right side
    20,475.84x = 325,616,208.72
  5. Step 5: Solve for x
    x = 325,616,208.72/20,475.84
  6. Step 6: Final answer
    x = 15,902.46

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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.