Home / 21,053.28-31,577.40-16,377.96

Finding the Fourth Proportional to 21,053.28, 31,577.40 and 16,377.96

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Solution

The fourth proportional to 21,053.28, 31,577.40 and 16,377.96 is: 24,564.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.28 : 31,577.40 = 16,377.96 : x
  2. Step 2: Convert to fraction form
    21,053.28/31,577.40 = 16,377.96/x
  3. Step 3: Cross multiply
    21,053.28x = 31,577.40 × 16,377.96
  4. Step 4: Simplify right side
    21,053.28x = 517,173,394.10
  5. Step 5: Solve for x
    x = 517,173,394.10/21,053.28
  6. Step 6: Final answer
    x = 24,564.98

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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.