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Finding the Fourth Proportional to 43,597.44, 65,407.50 and 12,435.12

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Solution

The fourth proportional to 43,597.44, 65,407.50 and 12,435.12 is: 18,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,597.44 : 65,407.50 = 12,435.12 : x
  2. Step 2: Convert to fraction form
    43,597.44/65,407.50 = 12,435.12/x
  3. Step 3: Cross multiply
    43,597.44x = 65,407.50 × 12,435.12
  4. Step 4: Simplify right side
    43,597.44x = 813,350,111.40
  5. Step 5: Solve for x
    x = 813,350,111.40/43,597.44
  6. Step 6: Final answer
    x = 18,655.91

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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.