Home / 20,029.52-30,018.36-10,646.48

Finding the Fourth Proportional to 20,029.52, 30,018.36 and 10,646.48

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Solution

The fourth proportional to 20,029.52, 30,018.36 and 10,646.48 is: 15,955.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,029.52 : 30,018.36 = 10,646.48 : x
  2. Step 2: Convert to fraction form
    20,029.52/30,018.36 = 10,646.48/x
  3. Step 3: Cross multiply
    20,029.52x = 30,018.36 × 10,646.48
  4. Step 4: Simplify right side
    20,029.52x = 319,589,869.37
  5. Step 5: Solve for x
    x = 319,589,869.37/20,029.52
  6. Step 6: Final answer
    x = 15,955.94

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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.