Home / 30,846.62-42,500.65-20,757.55

Finding the Fourth Proportional to 30,846.62, 42,500.65 and 20,757.55

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Solution

The fourth proportional to 30,846.62, 42,500.65 and 20,757.55 is: 28,599.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,846.62 : 42,500.65 = 20,757.55 : x
  2. Step 2: Convert to fraction form
    30,846.62/42,500.65 = 20,757.55/x
  3. Step 3: Cross multiply
    30,846.62x = 42,500.65 × 20,757.55
  4. Step 4: Simplify right side
    30,846.62x = 882,209,327.87
  5. Step 5: Solve for x
    x = 882,209,327.87/30,846.62
  6. Step 6: Final answer
    x = 28,599.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.