Home / 19,141.24-28,671.30-15,423.40

Finding the Fourth Proportional to 19,141.24, 28,671.30 and 15,423.40

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Solution

The fourth proportional to 19,141.24, 28,671.30 and 15,423.40 is: 23,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.24 : 28,671.30 = 15,423.40 : x
  2. Step 2: Convert to fraction form
    19,141.24/28,671.30 = 15,423.40/x
  3. Step 3: Cross multiply
    19,141.24x = 28,671.30 × 15,423.40
  4. Step 4: Simplify right side
    19,141.24x = 442,208,928.42
  5. Step 5: Solve for x
    x = 442,208,928.42/19,141.24
  6. Step 6: Final answer
    x = 23,102.42

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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.