Home / 20,526.20-30,746.10-16,638.20

Finding the Fourth Proportional to 20,526.20, 30,746.10 and 16,638.20

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Solution

The fourth proportional to 20,526.20, 30,746.10 and 16,638.20 is: 24,922.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.20 : 30,746.10 = 16,638.20 : x
  2. Step 2: Convert to fraction form
    20,526.20/30,746.10 = 16,638.20/x
  3. Step 3: Cross multiply
    20,526.20x = 30,746.10 × 16,638.20
  4. Step 4: Simplify right side
    20,526.20x = 511,559,761.02
  5. Step 5: Solve for x
    x = 511,559,761.02/20,526.20
  6. Step 6: Final answer
    x = 24,922.28

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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.