Home / 20,044.60-30,002.10-15,638.20

Finding the Fourth Proportional to 20,044.60, 30,002.10 and 15,638.20

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Solution

The fourth proportional to 20,044.60, 30,002.10 and 15,638.20 is: 23,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,044.60 : 30,002.10 = 15,638.20 : x
  2. Step 2: Convert to fraction form
    20,044.60/30,002.10 = 15,638.20/x
  3. Step 3: Cross multiply
    20,044.60x = 30,002.10 × 15,638.20
  4. Step 4: Simplify right side
    20,044.60x = 469,178,840.22
  5. Step 5: Solve for x
    x = 469,178,840.22/20,044.60
  6. Step 6: Final answer
    x = 23,406.74

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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.