Home / 21,461.06-32,180.66-8,977.70

Finding the Fourth Proportional to 21,461.06, 32,180.66 and 8,977.70

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Solution

The fourth proportional to 21,461.06, 32,180.66 and 8,977.70 is: 13,461.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461.06 : 32,180.66 = 8,977.70 : x
  2. Step 2: Convert to fraction form
    21,461.06/32,180.66 = 8,977.70/x
  3. Step 3: Cross multiply
    21,461.06x = 32,180.66 × 8,977.70
  4. Step 4: Simplify right side
    21,461.06x = 288,908,380.51
  5. Step 5: Solve for x
    x = 288,908,380.51/21,461.06
  6. Step 6: Final answer
    x = 13,461.98

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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.