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Finding the Fourth Proportional to 28,989.50, 43,484.26 and 7,101.50

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Solution

The fourth proportional to 28,989.50, 43,484.26 and 7,101.50 is: 10,652.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.50 : 43,484.26 = 7,101.50 : x
  2. Step 2: Convert to fraction form
    28,989.50/43,484.26 = 7,101.50/x
  3. Step 3: Cross multiply
    28,989.50x = 43,484.26 × 7,101.50
  4. Step 4: Simplify right side
    28,989.50x = 308,803,472.39
  5. Step 5: Solve for x
    x = 308,803,472.39/28,989.50
  6. Step 6: Final answer
    x = 10,652.25

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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.