Home / 30,948.72-46,320.39-28,181.76

Finding the Fourth Proportional to 30,948.72, 46,320.39 and 28,181.76

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Solution

The fourth proportional to 30,948.72, 46,320.39 and 28,181.76 is: 42,179.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.72 : 46,320.39 = 28,181.76 : x
  2. Step 2: Convert to fraction form
    30,948.72/46,320.39 = 28,181.76/x
  3. Step 3: Cross multiply
    30,948.72x = 46,320.39 × 28,181.76
  4. Step 4: Simplify right side
    30,948.72x = 1,305,390,114.09
  5. Step 5: Solve for x
    x = 1,305,390,114.09/30,948.72
  6. Step 6: Final answer
    x = 42,179.13

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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.