Home / 28,494.28-39,322.08-15,748.42

Finding the Fourth Proportional to 28,494.28, 39,322.08 and 15,748.42

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Solution

The fourth proportional to 28,494.28, 39,322.08 and 15,748.42 is: 21,732.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,494.28 : 39,322.08 = 15,748.42 : x
  2. Step 2: Convert to fraction form
    28,494.28/39,322.08 = 15,748.42/x
  3. Step 3: Cross multiply
    28,494.28x = 39,322.08 × 15,748.42
  4. Step 4: Simplify right side
    28,494.28x = 619,260,631.11
  5. Step 5: Solve for x
    x = 619,260,631.11/28,494.28
  6. Step 6: Final answer
    x = 21,732.81

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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.