Home / 20,278.23-30,417.44-13,302.42

Finding the Fourth Proportional to 20,278.23, 30,417.44 and 13,302.42

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Solution

The fourth proportional to 20,278.23, 30,417.44 and 13,302.42 is: 19,953.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278.23 : 30,417.44 = 13,302.42 : x
  2. Step 2: Convert to fraction form
    20,278.23/30,417.44 = 13,302.42/x
  3. Step 3: Cross multiply
    20,278.23x = 30,417.44 × 13,302.42
  4. Step 4: Simplify right side
    20,278.23x = 404,625,495.69
  5. Step 5: Solve for x
    x = 404,625,495.69/20,278.23
  6. Step 6: Final answer
    x = 19,953.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.