Home / 28,272.60-42,415.56-8,551.32

Finding the Fourth Proportional to 28,272.60, 42,415.56 and 8,551.32

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Solution

The fourth proportional to 28,272.60, 42,415.56 and 8,551.32 is: 12,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272.60 : 42,415.56 = 8,551.32 : x
  2. Step 2: Convert to fraction form
    28,272.60/42,415.56 = 8,551.32/x
  3. Step 3: Cross multiply
    28,272.60x = 42,415.56 × 8,551.32
  4. Step 4: Simplify right side
    28,272.60x = 362,709,026.54
  5. Step 5: Solve for x
    x = 362,709,026.54/28,272.60
  6. Step 6: Final answer
    x = 12,828.99

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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.