Home / 20,089.84-30,124.50-11,772.52

Finding the Fourth Proportional to 20,089.84, 30,124.50 and 11,772.52

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Solution

The fourth proportional to 20,089.84, 30,124.50 and 11,772.52 is: 17,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.84 : 30,124.50 = 11,772.52 : x
  2. Step 2: Convert to fraction form
    20,089.84/30,124.50 = 11,772.52/x
  3. Step 3: Cross multiply
    20,089.84x = 30,124.50 × 11,772.52
  4. Step 4: Simplify right side
    20,089.84x = 354,641,278.74
  5. Step 5: Solve for x
    x = 354,641,278.74/20,089.84
  6. Step 6: Final answer
    x = 17,652.77

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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.