Home / 20,337.28-30,527.48-18,012.38

Finding the Fourth Proportional to 20,337.28, 30,527.48 and 18,012.38

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Solution

The fourth proportional to 20,337.28, 30,527.48 and 18,012.38 is: 27,037.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.28 : 30,527.48 = 18,012.38 : x
  2. Step 2: Convert to fraction form
    20,337.28/30,527.48 = 18,012.38/x
  3. Step 3: Cross multiply
    20,337.28x = 30,527.48 × 18,012.38
  4. Step 4: Simplify right side
    20,337.28x = 549,872,462.60
  5. Step 5: Solve for x
    x = 549,872,462.60/20,337.28
  6. Step 6: Final answer
    x = 27,037.66

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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.