Home / 20,374.61-30,555.69-14,089.88

Finding the Fourth Proportional to 20,374.61, 30,555.69 and 14,089.88

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Solution

The fourth proportional to 20,374.61, 30,555.69 and 14,089.88 is: 21,130.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,374.61 : 30,555.69 = 14,089.88 : x
  2. Step 2: Convert to fraction form
    20,374.61/30,555.69 = 14,089.88/x
  3. Step 3: Cross multiply
    20,374.61x = 30,555.69 × 14,089.88
  4. Step 4: Simplify right side
    20,374.61x = 430,526,028.97
  5. Step 5: Solve for x
    x = 430,526,028.97/20,374.61
  6. Step 6: Final answer
    x = 21,130.52

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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.