Home / 20,276.70-30,415.05-14,703.90

Finding the Fourth Proportional to 20,276.70, 30,415.05 and 14,703.90

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Solution

The fourth proportional to 20,276.70, 30,415.05 and 14,703.90 is: 22,055.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.70 : 30,415.05 = 14,703.90 : x
  2. Step 2: Convert to fraction form
    20,276.70/30,415.05 = 14,703.90/x
  3. Step 3: Cross multiply
    20,276.70x = 30,415.05 × 14,703.90
  4. Step 4: Simplify right side
    20,276.70x = 447,219,853.70
  5. Step 5: Solve for x
    x = 447,219,853.70/20,276.70
  6. Step 6: Final answer
    x = 22,055.85

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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.