Home / 39,780.90-59,680.62-14,821.02

Finding the Fourth Proportional to 39,780.90, 59,680.62 and 14,821.02

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Solution

The fourth proportional to 39,780.90, 59,680.62 and 14,821.02 is: 22,234.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,780.90 : 59,680.62 = 14,821.02 : x
  2. Step 2: Convert to fraction form
    39,780.90/59,680.62 = 14,821.02/x
  3. Step 3: Cross multiply
    39,780.90x = 59,680.62 × 14,821.02
  4. Step 4: Simplify right side
    39,780.90x = 884,527,662.63
  5. Step 5: Solve for x
    x = 884,527,662.63/39,780.90
  6. Step 6: Final answer
    x = 22,234.98

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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.