Home / 20,567.56-30,762.14-12,113.92

Finding the Fourth Proportional to 20,567.56, 30,762.14 and 12,113.92

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Solution

The fourth proportional to 20,567.56, 30,762.14 and 12,113.92 is: 18,118.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.56 : 30,762.14 = 12,113.92 : x
  2. Step 2: Convert to fraction form
    20,567.56/30,762.14 = 12,113.92/x
  3. Step 3: Cross multiply
    20,567.56x = 30,762.14 × 12,113.92
  4. Step 4: Simplify right side
    20,567.56x = 372,650,102.99
  5. Step 5: Solve for x
    x = 372,650,102.99/20,567.56
  6. Step 6: Final answer
    x = 18,118.34

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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.