Home / 28,295.02-38,997.70-20,725.27

Finding the Fourth Proportional to 28,295.02, 38,997.70 and 20,725.27

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Solution

The fourth proportional to 28,295.02, 38,997.70 and 20,725.27 is: 28,564.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.02 : 38,997.70 = 20,725.27 : x
  2. Step 2: Convert to fraction form
    28,295.02/38,997.70 = 20,725.27/x
  3. Step 3: Cross multiply
    28,295.02x = 38,997.70 × 20,725.27
  4. Step 4: Simplify right side
    28,295.02x = 808,237,829.15
  5. Step 5: Solve for x
    x = 808,237,829.15/28,295.02
  6. Step 6: Final answer
    x = 28,564.67

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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.