Home / 45,234.66-67,852.17-18,920.95

Finding the Fourth Proportional to 45,234.66, 67,852.17 and 18,920.95

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Solution

The fourth proportional to 45,234.66, 67,852.17 and 18,920.95 is: 28,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,234.66 : 67,852.17 = 18,920.95 : x
  2. Step 2: Convert to fraction form
    45,234.66/67,852.17 = 18,920.95/x
  3. Step 3: Cross multiply
    45,234.66x = 67,852.17 × 18,920.95
  4. Step 4: Simplify right side
    45,234.66x = 1,283,827,515.96
  5. Step 5: Solve for x
    x = 1,283,827,515.96/45,234.66
  6. Step 6: Final answer
    x = 28,381.50

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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.