Home / 21,320.64-32,008.77-14,331.96

Finding the Fourth Proportional to 21,320.64, 32,008.77 and 14,331.96

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Solution

The fourth proportional to 21,320.64, 32,008.77 and 14,331.96 is: 21,516.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320.64 : 32,008.77 = 14,331.96 : x
  2. Step 2: Convert to fraction form
    21,320.64/32,008.77 = 14,331.96/x
  3. Step 3: Cross multiply
    21,320.64x = 32,008.77 × 14,331.96
  4. Step 4: Simplify right side
    21,320.64x = 458,748,411.29
  5. Step 5: Solve for x
    x = 458,748,411.29/21,320.64
  6. Step 6: Final answer
    x = 21,516.63

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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.