Home / 30,919.52-46,378.92-21,423.08

Finding the Fourth Proportional to 30,919.52, 46,378.92 and 21,423.08

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Solution

The fourth proportional to 30,919.52, 46,378.92 and 21,423.08 is: 32,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,919.52 : 46,378.92 = 21,423.08 : x
  2. Step 2: Convert to fraction form
    30,919.52/46,378.92 = 21,423.08/x
  3. Step 3: Cross multiply
    30,919.52x = 46,378.92 × 21,423.08
  4. Step 4: Simplify right side
    30,919.52x = 993,579,313.47
  5. Step 5: Solve for x
    x = 993,579,313.47/30,919.52
  6. Step 6: Final answer
    x = 32,134.37

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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.