Home / 20,527.68-30,760.20-10,670.16

Finding the Fourth Proportional to 20,527.68, 30,760.20 and 10,670.16

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Solution

The fourth proportional to 20,527.68, 30,760.20 and 10,670.16 is: 15,988.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.68 : 30,760.20 = 10,670.16 : x
  2. Step 2: Convert to fraction form
    20,527.68/30,760.20 = 10,670.16/x
  3. Step 3: Cross multiply
    20,527.68x = 30,760.20 × 10,670.16
  4. Step 4: Simplify right side
    20,527.68x = 328,216,255.63
  5. Step 5: Solve for x
    x = 328,216,255.63/20,527.68
  6. Step 6: Final answer
    x = 15,988.96

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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.