Home / 20,266.18-30,403.95-6,415.18

Finding the Fourth Proportional to 20,266.18, 30,403.95 and 6,415.18

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Solution

The fourth proportional to 20,266.18, 30,403.95 and 6,415.18 is: 9,624.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.18 : 30,403.95 = 6,415.18 : x
  2. Step 2: Convert to fraction form
    20,266.18/30,403.95 = 6,415.18/x
  3. Step 3: Cross multiply
    20,266.18x = 30,403.95 × 6,415.18
  4. Step 4: Simplify right side
    20,266.18x = 195,046,811.96
  5. Step 5: Solve for x
    x = 195,046,811.96/20,266.18
  6. Step 6: Final answer
    x = 9,624.25

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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.