Home / 43,109.80-64,664.58-13,527.76

Finding the Fourth Proportional to 43,109.80, 64,664.58 and 13,527.76

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Solution

The fourth proportional to 43,109.80, 64,664.58 and 13,527.76 is: 20,291.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,109.80 : 64,664.58 = 13,527.76 : x
  2. Step 2: Convert to fraction form
    43,109.80/64,664.58 = 13,527.76/x
  3. Step 3: Cross multiply
    43,109.80x = 64,664.58 × 13,527.76
  4. Step 4: Simplify right side
    43,109.80x = 874,766,918.74
  5. Step 5: Solve for x
    x = 874,766,918.74/43,109.80
  6. Step 6: Final answer
    x = 20,291.60

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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.