Home / 20,417.00-28,175.24-11,464.29

Finding the Fourth Proportional to 20,417.00, 28,175.24 and 11,464.29

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Solution

The fourth proportional to 20,417.00, 28,175.24 and 11,464.29 is: 15,820.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.00 : 28,175.24 = 11,464.29 : x
  2. Step 2: Convert to fraction form
    20,417.00/28,175.24 = 11,464.29/x
  3. Step 3: Cross multiply
    20,417.00x = 28,175.24 × 11,464.29
  4. Step 4: Simplify right side
    20,417.00x = 323,009,064.86
  5. Step 5: Solve for x
    x = 323,009,064.86/20,417.00
  6. Step 6: Final answer
    x = 15,820.60

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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.