Home / 28,032.29-38,684.08-15,285.57

Finding the Fourth Proportional to 28,032.29, 38,684.08 and 15,285.57

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Solution

The fourth proportional to 28,032.29, 38,684.08 and 15,285.57 is: 21,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.29 : 38,684.08 = 15,285.57 : x
  2. Step 2: Convert to fraction form
    28,032.29/38,684.08 = 15,285.57/x
  3. Step 3: Cross multiply
    28,032.29x = 38,684.08 × 15,285.57
  4. Step 4: Simplify right side
    28,032.29x = 591,308,358.76
  5. Step 5: Solve for x
    x = 591,308,358.76/28,032.29
  6. Step 6: Final answer
    x = 21,093.83

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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.