Home / 20,523.48-28,320.70-11,573.18

Finding the Fourth Proportional to 20,523.48, 28,320.70 and 11,573.18

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Solution

The fourth proportional to 20,523.48, 28,320.70 and 11,573.18 is: 15,970.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,523.48 : 28,320.70 = 11,573.18 : x
  2. Step 2: Convert to fraction form
    20,523.48/28,320.70 = 11,573.18/x
  3. Step 3: Cross multiply
    20,523.48x = 28,320.70 × 11,573.18
  4. Step 4: Simplify right side
    20,523.48x = 327,760,558.83
  5. Step 5: Solve for x
    x = 327,760,558.83/20,523.48
  6. Step 6: Final answer
    x = 15,970.03

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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.