Home / 43,513.32-65,163.12-21,254.94

Finding the Fourth Proportional to 43,513.32, 65,163.12 and 21,254.94

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Solution

The fourth proportional to 43,513.32, 65,163.12 and 21,254.94 is: 31,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,513.32 : 65,163.12 = 21,254.94 : x
  2. Step 2: Convert to fraction form
    43,513.32/65,163.12 = 21,254.94/x
  3. Step 3: Cross multiply
    43,513.32x = 65,163.12 × 21,254.94
  4. Step 4: Simplify right side
    43,513.32x = 1,385,038,205.81
  5. Step 5: Solve for x
    x = 1,385,038,205.81/43,513.32
  6. Step 6: Final answer
    x = 31,830.21

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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.