Home / 19,911.42-27,478.08-10,959.84

Finding the Fourth Proportional to 19,911.42, 27,478.08 and 10,959.84

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Solution

The fourth proportional to 19,911.42, 27,478.08 and 10,959.84 is: 15,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.42 : 27,478.08 = 10,959.84 : x
  2. Step 2: Convert to fraction form
    19,911.42/27,478.08 = 10,959.84/x
  3. Step 3: Cross multiply
    19,911.42x = 27,478.08 × 10,959.84
  4. Step 4: Simplify right side
    19,911.42x = 301,155,360.31
  5. Step 5: Solve for x
    x = 301,155,360.31/19,911.42
  6. Step 6: Final answer
    x = 15,124.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.