Home / 16,897.10-25,345.65-15,989.90

Finding the Fourth Proportional to 16,897.10, 25,345.65 and 15,989.90

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Solution

The fourth proportional to 16,897.10, 25,345.65 and 15,989.90 is: 23,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,897.10 : 25,345.65 = 15,989.90 : x
  2. Step 2: Convert to fraction form
    16,897.10/25,345.65 = 15,989.90/x
  3. Step 3: Cross multiply
    16,897.10x = 25,345.65 × 15,989.90
  4. Step 4: Simplify right side
    16,897.10x = 405,274,408.94
  5. Step 5: Solve for x
    x = 405,274,408.94/16,897.10
  6. Step 6: Final answer
    x = 23,984.85

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1.5x scale

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.