Home / 19,578.30-29,370.52-6,427.68

Finding the Fourth Proportional to 19,578.30, 29,370.52 and 6,427.68

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Solution

The fourth proportional to 19,578.30, 29,370.52 and 6,427.68 is: 9,642.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.30 : 29,370.52 = 6,427.68 : x
  2. Step 2: Convert to fraction form
    19,578.30/29,370.52 = 6,427.68/x
  3. Step 3: Cross multiply
    19,578.30x = 29,370.52 × 6,427.68
  4. Step 4: Simplify right side
    19,578.30x = 188,784,303.99
  5. Step 5: Solve for x
    x = 188,784,303.99/19,578.30
  6. Step 6: Final answer
    x = 9,642.53

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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.