Home / 43,205.39-64,813.85-21,015.84

Finding the Fourth Proportional to 43,205.39, 64,813.85 and 21,015.84

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Solution

The fourth proportional to 43,205.39, 64,813.85 and 21,015.84 is: 31,526.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,205.39 : 64,813.85 = 21,015.84 : x
  2. Step 2: Convert to fraction form
    43,205.39/64,813.85 = 21,015.84/x
  3. Step 3: Cross multiply
    43,205.39x = 64,813.85 × 21,015.84
  4. Step 4: Simplify right side
    43,205.39x = 1,362,117,501.38
  5. Step 5: Solve for x
    x = 1,362,117,501.38/43,205.39
  6. Step 6: Final answer
    x = 31,526.56

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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.