Home / 34,715.36-52,072.50-8,420.32

Finding the Fourth Proportional to 34,715.36, 52,072.50 and 8,420.32

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Solution

The fourth proportional to 34,715.36, 52,072.50 and 8,420.32 is: 12,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,715.36 : 52,072.50 = 8,420.32 : x
  2. Step 2: Convert to fraction form
    34,715.36/52,072.50 = 8,420.32/x
  3. Step 3: Cross multiply
    34,715.36x = 52,072.50 × 8,420.32
  4. Step 4: Simplify right side
    34,715.36x = 438,467,113.20
  5. Step 5: Solve for x
    x = 438,467,113.20/34,715.36
  6. Step 6: Final answer
    x = 12,630.35

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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.