Home / 20,527.46-28,328.21-12,027.55

Finding the Fourth Proportional to 20,527.46, 28,328.21 and 12,027.55

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Solution

The fourth proportional to 20,527.46, 28,328.21 and 12,027.55 is: 16,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.46 : 28,328.21 = 12,027.55 : x
  2. Step 2: Convert to fraction form
    20,527.46/28,328.21 = 12,027.55/x
  3. Step 3: Cross multiply
    20,527.46x = 28,328.21 × 12,027.55
  4. Step 4: Simplify right side
    20,527.46x = 340,718,962.19
  5. Step 5: Solve for x
    x = 340,718,962.19/20,527.46
  6. Step 6: Final answer
    x = 16,598.20

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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.