Home / 43,160.80-64,742.16-11,995.84

Finding the Fourth Proportional to 43,160.80, 64,742.16 and 11,995.84

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Solution

The fourth proportional to 43,160.80, 64,742.16 and 11,995.84 is: 17,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,160.80 : 64,742.16 = 11,995.84 : x
  2. Step 2: Convert to fraction form
    43,160.80/64,742.16 = 11,995.84/x
  3. Step 3: Cross multiply
    43,160.80x = 64,742.16 × 11,995.84
  4. Step 4: Simplify right side
    43,160.80x = 776,636,592.61
  5. Step 5: Solve for x
    x = 776,636,592.61/43,160.80
  6. Step 6: Final answer
    x = 17,994.03

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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.