Home / 20,703.62-28,573.56-11,754.02

Finding the Fourth Proportional to 20,703.62, 28,573.56 and 11,754.02

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Solution

The fourth proportional to 20,703.62, 28,573.56 and 11,754.02 is: 16,222.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,703.62 : 28,573.56 = 11,754.02 : x
  2. Step 2: Convert to fraction form
    20,703.62/28,573.56 = 11,754.02/x
  3. Step 3: Cross multiply
    20,703.62x = 28,573.56 × 11,754.02
  4. Step 4: Simplify right side
    20,703.62x = 335,854,052.84
  5. Step 5: Solve for x
    x = 335,854,052.84/20,703.62
  6. Step 6: Final answer
    x = 16,222.00

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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.