Home / 42,929.28-64,382.99-13,331.88

Finding the Fourth Proportional to 42,929.28, 64,382.99 and 13,331.88

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Solution

The fourth proportional to 42,929.28, 64,382.99 and 13,331.88 is: 19,994.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,929.28 : 64,382.99 = 13,331.88 : x
  2. Step 2: Convert to fraction form
    42,929.28/64,382.99 = 13,331.88/x
  3. Step 3: Cross multiply
    42,929.28x = 64,382.99 × 13,331.88
  4. Step 4: Simplify right side
    42,929.28x = 858,346,230.06
  5. Step 5: Solve for x
    x = 858,346,230.06/42,929.28
  6. Step 6: Final answer
    x = 19,994.42

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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.