Home / 28,296.84-42,456.12-10,538.40

Finding the Fourth Proportional to 28,296.84, 42,456.12 and 10,538.40

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Solution

The fourth proportional to 28,296.84, 42,456.12 and 10,538.40 is: 15,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.84 : 42,456.12 = 10,538.40 : x
  2. Step 2: Convert to fraction form
    28,296.84/42,456.12 = 10,538.40/x
  3. Step 3: Cross multiply
    28,296.84x = 42,456.12 × 10,538.40
  4. Step 4: Simplify right side
    28,296.84x = 447,419,575.01
  5. Step 5: Solve for x
    x = 447,419,575.01/28,296.84
  6. Step 6: Final answer
    x = 15,811.64

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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.