Home / 40,172.18-60,264.63-13,878.96

Finding the Fourth Proportional to 40,172.18, 60,264.63 and 13,878.96

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Solution

The fourth proportional to 40,172.18, 60,264.63 and 13,878.96 is: 20,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,172.18 : 60,264.63 = 13,878.96 : x
  2. Step 2: Convert to fraction form
    40,172.18/60,264.63 = 13,878.96/x
  3. Step 3: Cross multiply
    40,172.18x = 60,264.63 × 13,878.96
  4. Step 4: Simplify right side
    40,172.18x = 836,410,389.18
  5. Step 5: Solve for x
    x = 836,410,389.18/40,172.18
  6. Step 6: Final answer
    x = 20,820.64

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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.