Home / 28,853.70-39,822.48-20,893.02

Finding the Fourth Proportional to 28,853.70, 39,822.48 and 20,893.02

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Solution

The fourth proportional to 28,853.70, 39,822.48 and 20,893.02 is: 28,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,853.70 : 39,822.48 = 20,893.02 : x
  2. Step 2: Convert to fraction form
    28,853.70/39,822.48 = 20,893.02/x
  3. Step 3: Cross multiply
    28,853.70x = 39,822.48 × 20,893.02
  4. Step 4: Simplify right side
    28,853.70x = 832,011,871.09
  5. Step 5: Solve for x
    x = 832,011,871.09/28,853.70
  6. Step 6: Final answer
    x = 28,835.53

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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.