Home / 20,859.98-31,263.69-14,905.85

Finding the Fourth Proportional to 20,859.98, 31,263.69 and 14,905.85

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Solution

The fourth proportional to 20,859.98, 31,263.69 and 14,905.85 is: 22,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859.98 : 31,263.69 = 14,905.85 : x
  2. Step 2: Convert to fraction form
    20,859.98/31,263.69 = 14,905.85/x
  3. Step 3: Cross multiply
    20,859.98x = 31,263.69 × 14,905.85
  4. Step 4: Simplify right side
    20,859.98x = 466,011,873.59
  5. Step 5: Solve for x
    x = 466,011,873.59/20,859.98
  6. Step 6: Final answer
    x = 22,340.00

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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.