Home / 20,417.19-28,174.82-11,464.53

Finding the Fourth Proportional to 20,417.19, 28,174.82 and 11,464.53

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Solution

The fourth proportional to 20,417.19, 28,174.82 and 11,464.53 is: 15,820.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.19 : 28,174.82 = 11,464.53 : x
  2. Step 2: Convert to fraction form
    20,417.19/28,174.82 = 11,464.53/x
  3. Step 3: Cross multiply
    20,417.19x = 28,174.82 × 11,464.53
  4. Step 4: Simplify right side
    20,417.19x = 323,011,011.81
  5. Step 5: Solve for x
    x = 323,011,011.81/20,417.19
  6. Step 6: Final answer
    x = 15,820.54

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Double scale
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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.