Home / 28,320.45-39,082.25-15,573.84

Finding the Fourth Proportional to 28,320.45, 39,082.25 and 15,573.84

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Solution

The fourth proportional to 28,320.45, 39,082.25 and 15,573.84 is: 21,491.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.45 : 39,082.25 = 15,573.84 : x
  2. Step 2: Convert to fraction form
    28,320.45/39,082.25 = 15,573.84/x
  3. Step 3: Cross multiply
    28,320.45x = 39,082.25 × 15,573.84
  4. Step 4: Simplify right side
    28,320.45x = 608,660,708.34
  5. Step 5: Solve for x
    x = 608,660,708.34/28,320.45
  6. Step 6: Final answer
    x = 21,491.92

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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.