Home / 45,635.18-68,401.89-18,966.29

Finding the Fourth Proportional to 45,635.18, 68,401.89 and 18,966.29

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Solution

The fourth proportional to 45,635.18, 68,401.89 and 18,966.29 is: 28,428.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,635.18 : 68,401.89 = 18,966.29 : x
  2. Step 2: Convert to fraction form
    45,635.18/68,401.89 = 18,966.29/x
  3. Step 3: Cross multiply
    45,635.18x = 68,401.89 × 18,966.29
  4. Step 4: Simplify right side
    45,635.18x = 1,297,329,740.28
  5. Step 5: Solve for x
    x = 1,297,329,740.28/45,635.18
  6. Step 6: Final answer
    x = 28,428.28

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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.