Home / 28,013.44-38,646.30-20,052.76

Finding the Fourth Proportional to 28,013.44, 38,646.30 and 20,052.76

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Solution

The fourth proportional to 28,013.44, 38,646.30 and 20,052.76 is: 27,664.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.44 : 38,646.30 = 20,052.76 : x
  2. Step 2: Convert to fraction form
    28,013.44/38,646.30 = 20,052.76/x
  3. Step 3: Cross multiply
    28,013.44x = 38,646.30 × 20,052.76
  4. Step 4: Simplify right side
    28,013.44x = 774,964,978.79
  5. Step 5: Solve for x
    x = 774,964,978.79/28,013.44
  6. Step 6: Final answer
    x = 27,664.04

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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.