Home / 40,828.20-61,242.58-11,247.64

Finding the Fourth Proportional to 40,828.20, 61,242.58 and 11,247.64

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Solution

The fourth proportional to 40,828.20, 61,242.58 and 11,247.64 is: 16,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,828.20 : 61,242.58 = 11,247.64 : x
  2. Step 2: Convert to fraction form
    40,828.20/61,242.58 = 11,247.64/x
  3. Step 3: Cross multiply
    40,828.20x = 61,242.58 × 11,247.64
  4. Step 4: Simplify right side
    40,828.20x = 688,834,492.51
  5. Step 5: Solve for x
    x = 688,834,492.51/40,828.20
  6. Step 6: Final answer
    x = 16,871.54

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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.