Home / 20,156.05-30,234.02-5,364.98

Finding the Fourth Proportional to 20,156.05, 30,234.02 and 5,364.98

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Solution

The fourth proportional to 20,156.05, 30,234.02 and 5,364.98 is: 8,047.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.05 : 30,234.02 = 5,364.98 : x
  2. Step 2: Convert to fraction form
    20,156.05/30,234.02 = 5,364.98/x
  3. Step 3: Cross multiply
    20,156.05x = 30,234.02 × 5,364.98
  4. Step 4: Simplify right side
    20,156.05x = 162,205,055.79
  5. Step 5: Solve for x
    x = 162,205,055.79/20,156.05
  6. Step 6: Final answer
    x = 8,047.46

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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.