Home / 21,845.90-30,150.58-13,352.92

Finding the Fourth Proportional to 21,845.90, 30,150.58 and 13,352.92

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Solution

The fourth proportional to 21,845.90, 30,150.58 and 13,352.92 is: 18,429.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,845.90 : 30,150.58 = 13,352.92 : x
  2. Step 2: Convert to fraction form
    21,845.90/30,150.58 = 13,352.92/x
  3. Step 3: Cross multiply
    21,845.90x = 30,150.58 × 13,352.92
  4. Step 4: Simplify right side
    21,845.90x = 402,598,295.08
  5. Step 5: Solve for x
    x = 402,598,295.08/21,845.90
  6. Step 6: Final answer
    x = 18,429.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.