Home / 28,553.58-42,840.52-12,757.17

Finding the Fourth Proportional to 28,553.58, 42,840.52 and 12,757.17

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Solution

The fourth proportional to 28,553.58, 42,840.52 and 12,757.17 is: 19,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553.58 : 42,840.52 = 12,757.17 : x
  2. Step 2: Convert to fraction form
    28,553.58/42,840.52 = 12,757.17/x
  3. Step 3: Cross multiply
    28,553.58x = 42,840.52 × 12,757.17
  4. Step 4: Simplify right side
    28,553.58x = 546,523,603.98
  5. Step 5: Solve for x
    x = 546,523,603.98/28,553.58
  6. Step 6: Final answer
    x = 19,140.28

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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.