Home / 21,840.46-32,729.40-12,461.08

Finding the Fourth Proportional to 21,840.46, 32,729.40 and 12,461.08

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Solution

The fourth proportional to 21,840.46, 32,729.40 and 12,461.08 is: 18,673.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.46 : 32,729.40 = 12,461.08 : x
  2. Step 2: Convert to fraction form
    21,840.46/32,729.40 = 12,461.08/x
  3. Step 3: Cross multiply
    21,840.46x = 32,729.40 × 12,461.08
  4. Step 4: Simplify right side
    21,840.46x = 407,843,671.75
  5. Step 5: Solve for x
    x = 407,843,671.75/21,840.46
  6. Step 6: Final answer
    x = 18,673.77

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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.