Home / 43,415.60-65,123.40-13,835.60

Finding the Fourth Proportional to 43,415.60, 65,123.40 and 13,835.60

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Solution

The fourth proportional to 43,415.60, 65,123.40 and 13,835.60 is: 20,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,415.60 : 65,123.40 = 13,835.60 : x
  2. Step 2: Convert to fraction form
    43,415.60/65,123.40 = 13,835.60/x
  3. Step 3: Cross multiply
    43,415.60x = 65,123.40 × 13,835.60
  4. Step 4: Simplify right side
    43,415.60x = 901,021,313.04
  5. Step 5: Solve for x
    x = 901,021,313.04/43,415.60
  6. Step 6: Final answer
    x = 20,753.40

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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.