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Finding the Fourth Proportional to 28,984.80, 43,465.04 and 9,258.06

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Solution

The fourth proportional to 28,984.80, 43,465.04 and 9,258.06 is: 13,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,984.80 : 43,465.04 = 9,258.06 : x
  2. Step 2: Convert to fraction form
    28,984.80/43,465.04 = 9,258.06/x
  3. Step 3: Cross multiply
    28,984.80x = 43,465.04 × 9,258.06
  4. Step 4: Simplify right side
    28,984.80x = 402,401,948.22
  5. Step 5: Solve for x
    x = 402,401,948.22/28,984.80
  6. Step 6: Final answer
    x = 13,883.21

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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.