Home / 19,479.69-29,216.57-5,438.24

Finding the Fourth Proportional to 19,479.69, 29,216.57 and 5,438.24

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Solution

The fourth proportional to 19,479.69, 29,216.57 and 5,438.24 is: 8,156.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,479.69 : 29,216.57 = 5,438.24 : x
  2. Step 2: Convert to fraction form
    19,479.69/29,216.57 = 5,438.24/x
  3. Step 3: Cross multiply
    19,479.69x = 29,216.57 × 5,438.24
  4. Step 4: Simplify right side
    19,479.69x = 158,886,719.64
  5. Step 5: Solve for x
    x = 158,886,719.64/19,479.69
  6. Step 6: Final answer
    x = 8,156.53

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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.