Home / 31,278.48-46,921.58-10,212.88

Finding the Fourth Proportional to 31,278.48, 46,921.58 and 10,212.88

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Solution

The fourth proportional to 31,278.48, 46,921.58 and 10,212.88 is: 15,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.48 : 46,921.58 = 10,212.88 : x
  2. Step 2: Convert to fraction form
    31,278.48/46,921.58 = 10,212.88/x
  3. Step 3: Cross multiply
    31,278.48x = 46,921.58 × 10,212.88
  4. Step 4: Simplify right side
    31,278.48x = 479,204,465.95
  5. Step 5: Solve for x
    x = 479,204,465.95/31,278.48
  6. Step 6: Final answer
    x = 15,320.58

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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.