Home / 43,158.84-64,736.10-11,994.36

Finding the Fourth Proportional to 43,158.84, 64,736.10 and 11,994.36

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Solution

The fourth proportional to 43,158.84, 64,736.10 and 11,994.36 is: 17,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,158.84 : 64,736.10 = 11,994.36 : x
  2. Step 2: Convert to fraction form
    43,158.84/64,736.10 = 11,994.36/x
  3. Step 3: Cross multiply
    43,158.84x = 64,736.10 × 11,994.36
  4. Step 4: Simplify right side
    43,158.84x = 776,468,088.40
  5. Step 5: Solve for x
    x = 776,468,088.40/43,158.84
  6. Step 6: Final answer
    x = 17,990.94

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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.