Home / 28,838.92-43,258.10-9,117.47

Finding the Fourth Proportional to 28,838.92, 43,258.10 and 9,117.47

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Solution

The fourth proportional to 28,838.92, 43,258.10 and 9,117.47 is: 13,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838.92 : 43,258.10 = 9,117.47 : x
  2. Step 2: Convert to fraction form
    28,838.92/43,258.10 = 9,117.47/x
  3. Step 3: Cross multiply
    28,838.92x = 43,258.10 × 9,117.47
  4. Step 4: Simplify right side
    28,838.92x = 394,404,429.01
  5. Step 5: Solve for x
    x = 394,404,429.01/28,838.92
  6. Step 6: Final answer
    x = 13,676.12

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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.