Home / 30,897.62-42,638.77-16,750.46

Finding the Fourth Proportional to 30,897.62, 42,638.77 and 16,750.46

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Solution

The fourth proportional to 30,897.62, 42,638.77 and 16,750.46 is: 23,115.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,897.62 : 42,638.77 = 16,750.46 : x
  2. Step 2: Convert to fraction form
    30,897.62/42,638.77 = 16,750.46/x
  3. Step 3: Cross multiply
    30,897.62x = 42,638.77 × 16,750.46
  4. Step 4: Simplify right side
    30,897.62x = 714,219,138.87
  5. Step 5: Solve for x
    x = 714,219,138.87/30,897.62
  6. Step 6: Final answer
    x = 23,115.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.