Home / 19,972.20-29,925.90-12,563.40

Finding the Fourth Proportional to 19,972.20, 29,925.90 and 12,563.40

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Solution

The fourth proportional to 19,972.20, 29,925.90 and 12,563.40 is: 18,824.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.20 : 29,925.90 = 12,563.40 : x
  2. Step 2: Convert to fraction form
    19,972.20/29,925.90 = 12,563.40/x
  3. Step 3: Cross multiply
    19,972.20x = 29,925.90 × 12,563.40
  4. Step 4: Simplify right side
    19,972.20x = 375,971,052.06
  5. Step 5: Solve for x
    x = 375,971,052.06/19,972.20
  6. Step 6: Final answer
    x = 18,824.72

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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.