Home / 19,628.07-29,444.82-7,145.76

Finding the Fourth Proportional to 19,628.07, 29,444.82 and 7,145.76

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Solution

The fourth proportional to 19,628.07, 29,444.82 and 7,145.76 is: 10,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,628.07 : 29,444.82 = 7,145.76 : x
  2. Step 2: Convert to fraction form
    19,628.07/29,444.82 = 7,145.76/x
  3. Step 3: Cross multiply
    19,628.07x = 29,444.82 × 7,145.76
  4. Step 4: Simplify right side
    19,628.07x = 210,405,616.96
  5. Step 5: Solve for x
    x = 210,405,616.96/19,628.07
  6. Step 6: Final answer
    x = 10,719.63

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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.