Home / 19,339.40-29,009.46-15,490.28

Finding the Fourth Proportional to 19,339.40, 29,009.46 and 15,490.28

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Solution

The fourth proportional to 19,339.40, 29,009.46 and 15,490.28 is: 23,235.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339.40 : 29,009.46 = 15,490.28 : x
  2. Step 2: Convert to fraction form
    19,339.40/29,009.46 = 15,490.28/x
  3. Step 3: Cross multiply
    19,339.40x = 29,009.46 × 15,490.28
  4. Step 4: Simplify right side
    19,339.40x = 449,364,658.05
  5. Step 5: Solve for x
    x = 449,364,658.05/19,339.40
  6. Step 6: Final answer
    x = 23,235.71

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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.