Home / 30,947.52-46,420.92-21,451.20

Finding the Fourth Proportional to 30,947.52, 46,420.92 and 21,451.20

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Solution

The fourth proportional to 30,947.52, 46,420.92 and 21,451.20 is: 32,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,947.52 : 46,420.92 = 21,451.20 : x
  2. Step 2: Convert to fraction form
    30,947.52/46,420.92 = 21,451.20/x
  3. Step 3: Cross multiply
    30,947.52x = 46,420.92 × 21,451.20
  4. Step 4: Simplify right side
    30,947.52x = 995,784,439.10
  5. Step 5: Solve for x
    x = 995,784,439.10/30,947.52
  6. Step 6: Final answer
    x = 32,176.55

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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.