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Finding the Fourth Proportional to 43,909.37, 65,866.99 and 15,442.91

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Solution

The fourth proportional to 43,909.37, 65,866.99 and 15,442.91 is: 23,165.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,909.37 : 65,866.99 = 15,442.91 : x
  2. Step 2: Convert to fraction form
    43,909.37/65,866.99 = 15,442.91/x
  3. Step 3: Cross multiply
    43,909.37x = 65,866.99 × 15,442.91
  4. Step 4: Simplify right side
    43,909.37x = 1,017,177,935.51
  5. Step 5: Solve for x
    x = 1,017,177,935.51/43,909.37
  6. Step 6: Final answer
    x = 23,165.39

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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.