Home / 21,083.78-31,595.28-16,064.60

Finding the Fourth Proportional to 21,083.78, 31,595.28 and 16,064.60

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Solution

The fourth proportional to 21,083.78, 31,595.28 and 16,064.60 is: 24,073.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.78 : 31,595.28 = 16,064.60 : x
  2. Step 2: Convert to fraction form
    21,083.78/31,595.28 = 16,064.60/x
  3. Step 3: Cross multiply
    21,083.78x = 31,595.28 × 16,064.60
  4. Step 4: Simplify right side
    21,083.78x = 507,565,535.09
  5. Step 5: Solve for x
    x = 507,565,535.09/21,083.78
  6. Step 6: Final answer
    x = 24,073.74

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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.