Home / 28,322.56-39,082.45-15,575.52

Finding the Fourth Proportional to 28,322.56, 39,082.45 and 15,575.52

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Solution

The fourth proportional to 28,322.56, 39,082.45 and 15,575.52 is: 21,492.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,322.56 : 39,082.45 = 15,575.52 : x
  2. Step 2: Convert to fraction form
    28,322.56/39,082.45 = 15,575.52/x
  3. Step 3: Cross multiply
    28,322.56x = 39,082.45 × 15,575.52
  4. Step 4: Simplify right side
    28,322.56x = 608,729,618.45
  5. Step 5: Solve for x
    x = 608,729,618.45/28,322.56
  6. Step 6: Final answer
    x = 21,492.75

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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.