Home / 19,374.48-29,023.60-12,780.52

Finding the Fourth Proportional to 19,374.48, 29,023.60 and 12,780.52

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Solution

The fourth proportional to 19,374.48, 29,023.60 and 12,780.52 is: 19,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.48 : 29,023.60 = 12,780.52 : x
  2. Step 2: Convert to fraction form
    19,374.48/29,023.60 = 12,780.52/x
  3. Step 3: Cross multiply
    19,374.48x = 29,023.60 × 12,780.52
  4. Step 4: Simplify right side
    19,374.48x = 370,936,700.27
  5. Step 5: Solve for x
    x = 370,936,700.27/19,374.48
  6. Step 6: Final answer
    x = 19,145.63

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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.