Home / 28,546.94-42,820.68-12,752.77

Finding the Fourth Proportional to 28,546.94, 42,820.68 and 12,752.77

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Solution

The fourth proportional to 28,546.94, 42,820.68 and 12,752.77 is: 19,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.94 : 42,820.68 = 12,752.77 : x
  2. Step 2: Convert to fraction form
    28,546.94/42,820.68 = 12,752.77/x
  3. Step 3: Cross multiply
    28,546.94x = 42,820.68 × 12,752.77
  4. Step 4: Simplify right side
    28,546.94x = 546,082,283.28
  5. Step 5: Solve for x
    x = 546,082,283.28/28,546.94
  6. Step 6: Final answer
    x = 19,129.28

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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.