Home / 20,439.06-30,658.65-14,180.70

Finding the Fourth Proportional to 20,439.06, 30,658.65 and 14,180.70

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Solution

The fourth proportional to 20,439.06, 30,658.65 and 14,180.70 is: 21,271.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439.06 : 30,658.65 = 14,180.70 : x
  2. Step 2: Convert to fraction form
    20,439.06/30,658.65 = 14,180.70/x
  3. Step 3: Cross multiply
    20,439.06x = 30,658.65 × 14,180.70
  4. Step 4: Simplify right side
    20,439.06x = 434,761,118.06
  5. Step 5: Solve for x
    x = 434,761,118.06/20,439.06
  6. Step 6: Final answer
    x = 21,271.09

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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.