Home / 22,202.58-30,638.61-12,130.86

Finding the Fourth Proportional to 22,202.58, 30,638.61 and 12,130.86

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Solution

The fourth proportional to 22,202.58, 30,638.61 and 12,130.86 is: 16,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.58 : 30,638.61 = 12,130.86 : x
  2. Step 2: Convert to fraction form
    22,202.58/30,638.61 = 12,130.86/x
  3. Step 3: Cross multiply
    22,202.58x = 30,638.61 × 12,130.86
  4. Step 4: Simplify right side
    22,202.58x = 371,672,688.50
  5. Step 5: Solve for x
    x = 371,672,688.50/22,202.58
  6. Step 6: Final answer
    x = 16,740.07

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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.