Home / 28,548.64-42,823.28-12,754.47

Finding the Fourth Proportional to 28,548.64, 42,823.28 and 12,754.47

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Solution

The fourth proportional to 28,548.64, 42,823.28 and 12,754.47 is: 19,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,548.64 : 42,823.28 = 12,754.47 : x
  2. Step 2: Convert to fraction form
    28,548.64/42,823.28 = 12,754.47/x
  3. Step 3: Cross multiply
    28,548.64x = 42,823.28 × 12,754.47
  4. Step 4: Simplify right side
    28,548.64x = 546,188,240.06
  5. Step 5: Solve for x
    x = 546,188,240.06/28,548.64
  6. Step 6: Final answer
    x = 19,131.85

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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.