Home / 43,401.05-65,085.06-15,315.87

Finding the Fourth Proportional to 43,401.05, 65,085.06 and 15,315.87

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Solution

The fourth proportional to 43,401.05, 65,085.06 and 15,315.87 is: 22,967.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,401.05 : 65,085.06 = 15,315.87 : x
  2. Step 2: Convert to fraction form
    43,401.05/65,085.06 = 15,315.87/x
  3. Step 3: Cross multiply
    43,401.05x = 65,085.06 × 15,315.87
  4. Step 4: Simplify right side
    43,401.05x = 996,834,619.41
  5. Step 5: Solve for x
    x = 996,834,619.41/43,401.05
  6. Step 6: Final answer
    x = 22,967.98

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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.