Home / 20,430.63-30,707.10-16,943.58

Finding the Fourth Proportional to 20,430.63, 30,707.10 and 16,943.58

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Solution

The fourth proportional to 20,430.63, 30,707.10 and 16,943.58 is: 25,466.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430.63 : 30,707.10 = 16,943.58 : x
  2. Step 2: Convert to fraction form
    20,430.63/30,707.10 = 16,943.58/x
  3. Step 3: Cross multiply
    20,430.63x = 30,707.10 × 16,943.58
  4. Step 4: Simplify right side
    20,430.63x = 520,288,205.42
  5. Step 5: Solve for x
    x = 520,288,205.42/20,430.63
  6. Step 6: Final answer
    x = 25,466.09

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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.