Home / 28,838.90-43,258.08-9,117.46

Finding the Fourth Proportional to 28,838.90, 43,258.08 and 9,117.46

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Solution

The fourth proportional to 28,838.90, 43,258.08 and 9,117.46 is: 13,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,838.90 : 43,258.08 = 9,117.46 : x
  2. Step 2: Convert to fraction form
    28,838.90/43,258.08 = 9,117.46/x
  3. Step 3: Cross multiply
    28,838.90x = 43,258.08 × 9,117.46
  4. Step 4: Simplify right side
    28,838.90x = 394,403,705.93
  5. Step 5: Solve for x
    x = 394,403,705.93/28,838.90
  6. Step 6: Final answer
    x = 13,676.10

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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.