Home / 43,159.05-64,738.71-11,994.30

Finding the Fourth Proportional to 43,159.05, 64,738.71 and 11,994.30

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Solution

The fourth proportional to 43,159.05, 64,738.71 and 11,994.30 is: 17,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,159.05 : 64,738.71 = 11,994.30 : x
  2. Step 2: Convert to fraction form
    43,159.05/64,738.71 = 11,994.30/x
  3. Step 3: Cross multiply
    43,159.05x = 64,738.71 × 11,994.30
  4. Step 4: Simplify right side
    43,159.05x = 776,495,509.35
  5. Step 5: Solve for x
    x = 776,495,509.35/43,159.05
  6. Step 6: Final answer
    x = 17,991.49

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Double scale
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Similar ratio
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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.