Home / 20,577.41-30,865.40-8,723.55

Finding the Fourth Proportional to 20,577.41, 30,865.40 and 8,723.55

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Solution

The fourth proportional to 20,577.41, 30,865.40 and 8,723.55 is: 13,085.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.41 : 30,865.40 = 8,723.55 : x
  2. Step 2: Convert to fraction form
    20,577.41/30,865.40 = 8,723.55/x
  3. Step 3: Cross multiply
    20,577.41x = 30,865.40 × 8,723.55
  4. Step 4: Simplify right side
    20,577.41x = 269,255,840.46
  5. Step 5: Solve for x
    x = 269,255,840.46/20,577.41
  6. Step 6: Final answer
    x = 13,085.02

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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.