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Finding the Fourth Proportional to 28,991.61, 43,483.28 and 9,267.57

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Solution

The fourth proportional to 28,991.61, 43,483.28 and 9,267.57 is: 13,900.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,991.61 : 43,483.28 = 9,267.57 : x
  2. Step 2: Convert to fraction form
    28,991.61/43,483.28 = 9,267.57/x
  3. Step 3: Cross multiply
    28,991.61x = 43,483.28 × 9,267.57
  4. Step 4: Simplify right side
    28,991.61x = 402,984,294.89
  5. Step 5: Solve for x
    x = 402,984,294.89/28,991.61
  6. Step 6: Final answer
    x = 13,900.03

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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.