Home / 21,705.96-32,579.10-8,567.40

Finding the Fourth Proportional to 21,705.96, 32,579.10 and 8,567.40

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Solution

The fourth proportional to 21,705.96, 32,579.10 and 8,567.40 is: 12,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,705.96 : 32,579.10 = 8,567.40 : x
  2. Step 2: Convert to fraction form
    21,705.96/32,579.10 = 8,567.40/x
  3. Step 3: Cross multiply
    21,705.96x = 32,579.10 × 8,567.40
  4. Step 4: Simplify right side
    21,705.96x = 279,118,181.34
  5. Step 5: Solve for x
    x = 279,118,181.34/21,705.96
  6. Step 6: Final answer
    x = 12,859.06

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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.