Home / 43,215.38-64,823.08-13,635.53

Finding the Fourth Proportional to 43,215.38, 64,823.08 and 13,635.53

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Solution

The fourth proportional to 43,215.38, 64,823.08 and 13,635.53 is: 20,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,215.38 : 64,823.08 = 13,635.53 : x
  2. Step 2: Convert to fraction form
    43,215.38/64,823.08 = 13,635.53/x
  3. Step 3: Cross multiply
    43,215.38x = 64,823.08 × 13,635.53
  4. Step 4: Simplify right side
    43,215.38x = 883,897,052.03
  5. Step 5: Solve for x
    x = 883,897,052.03/43,215.38
  6. Step 6: Final answer
    x = 20,453.30

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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.