Home / 20,300.00-28,013.82-11,347.27

Finding the Fourth Proportional to 20,300.00, 28,013.82 and 11,347.27

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Solution

The fourth proportional to 20,300.00, 28,013.82 and 11,347.27 is: 15,659.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,300.00 : 28,013.82 = 11,347.27 : x
  2. Step 2: Convert to fraction form
    20,300.00/28,013.82 = 11,347.27/x
  3. Step 3: Cross multiply
    20,300.00x = 28,013.82 × 11,347.27
  4. Step 4: Simplify right side
    20,300.00x = 317,880,424.26
  5. Step 5: Solve for x
    x = 317,880,424.26/20,300.00
  6. Step 6: Final answer
    x = 15,659.13

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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.