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Finding the Fourth Proportional to 28,989.68, 43,472.34 and 9,262.94

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Solution

The fourth proportional to 28,989.68, 43,472.34 and 9,262.94 is: 13,890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.68 : 43,472.34 = 9,262.94 : x
  2. Step 2: Convert to fraction form
    28,989.68/43,472.34 = 9,262.94/x
  3. Step 3: Cross multiply
    28,989.68x = 43,472.34 × 9,262.94
  4. Step 4: Simplify right side
    28,989.68x = 402,681,459.72
  5. Step 5: Solve for x
    x = 402,681,459.72/28,989.68
  6. Step 6: Final answer
    x = 13,890.51

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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.