Home / 22,421.40-33,615.90-12,563.70

Finding the Fourth Proportional to 22,421.40, 33,615.90 and 12,563.70

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Solution

The fourth proportional to 22,421.40, 33,615.90 and 12,563.70 is: 18,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,421.40 : 33,615.90 = 12,563.70 : x
  2. Step 2: Convert to fraction form
    22,421.40/33,615.90 = 12,563.70/x
  3. Step 3: Cross multiply
    22,421.40x = 33,615.90 × 12,563.70
  4. Step 4: Simplify right side
    22,421.40x = 422,340,082.83
  5. Step 5: Solve for x
    x = 422,340,082.83/22,421.40
  6. Step 6: Final answer
    x = 18,836.47

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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.