Home / 28,911.40-43,383.52-13,329.04

Finding the Fourth Proportional to 28,911.40, 43,383.52 and 13,329.04

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Solution

The fourth proportional to 28,911.40, 43,383.52 and 13,329.04 is: 20,001.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.40 : 43,383.52 = 13,329.04 : x
  2. Step 2: Convert to fraction form
    28,911.40/43,383.52 = 13,329.04/x
  3. Step 3: Cross multiply
    28,911.40x = 43,383.52 × 13,329.04
  4. Step 4: Simplify right side
    28,911.40x = 578,260,673.42
  5. Step 5: Solve for x
    x = 578,260,673.42/28,911.40
  6. Step 6: Final answer
    x = 20,001.13

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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.