Home / 18,484.98-25,520.58-12,030.78

Finding the Fourth Proportional to 18,484.98, 25,520.58 and 12,030.78

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Solution

The fourth proportional to 18,484.98, 25,520.58 and 12,030.78 is: 16,609.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.98 : 25,520.58 = 12,030.78 : x
  2. Step 2: Convert to fraction form
    18,484.98/25,520.58 = 12,030.78/x
  3. Step 3: Cross multiply
    18,484.98x = 25,520.58 × 12,030.78
  4. Step 4: Simplify right side
    18,484.98x = 307,032,483.45
  5. Step 5: Solve for x
    x = 307,032,483.45/18,484.98
  6. Step 6: Final answer
    x = 16,609.84

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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.