Home / 20,155.63-27,810.48-11,201.26

Finding the Fourth Proportional to 20,155.63, 27,810.48 and 11,201.26

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Solution

The fourth proportional to 20,155.63, 27,810.48 and 11,201.26 is: 15,455.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.63 : 27,810.48 = 11,201.26 : x
  2. Step 2: Convert to fraction form
    20,155.63/27,810.48 = 11,201.26/x
  3. Step 3: Cross multiply
    20,155.63x = 27,810.48 × 11,201.26
  4. Step 4: Simplify right side
    20,155.63x = 311,512,417.20
  5. Step 5: Solve for x
    x = 311,512,417.20/20,155.63
  6. Step 6: Final answer
    x = 15,455.36

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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.