Home / 30,648.58-42,322.70-19,338.14

Finding the Fourth Proportional to 30,648.58, 42,322.70 and 19,338.14

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Solution

The fourth proportional to 30,648.58, 42,322.70 and 19,338.14 is: 26,704.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,648.58 : 42,322.70 = 19,338.14 : x
  2. Step 2: Convert to fraction form
    30,648.58/42,322.70 = 19,338.14/x
  3. Step 3: Cross multiply
    30,648.58x = 42,322.70 × 19,338.14
  4. Step 4: Simplify right side
    30,648.58x = 818,442,451.93
  5. Step 5: Solve for x
    x = 818,442,451.93/30,648.58
  6. Step 6: Final answer
    x = 26,704.09

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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.