Home / 28,276.43-42,398.48-11,622.75

Finding the Fourth Proportional to 28,276.43, 42,398.48 and 11,622.75

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Solution

The fourth proportional to 28,276.43, 42,398.48 and 11,622.75 is: 17,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.43 : 42,398.48 = 11,622.75 : x
  2. Step 2: Convert to fraction form
    28,276.43/42,398.48 = 11,622.75/x
  3. Step 3: Cross multiply
    28,276.43x = 42,398.48 × 11,622.75
  4. Step 4: Simplify right side
    28,276.43x = 492,786,875.31
  5. Step 5: Solve for x
    x = 492,786,875.31/28,276.43
  6. Step 6: Final answer
    x = 17,427.48

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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.