Home / 42,948.70-64,424.67-11,786.38

Finding the Fourth Proportional to 42,948.70, 64,424.67 and 11,786.38

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Solution

The fourth proportional to 42,948.70, 64,424.67 and 11,786.38 is: 17,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,948.70 : 64,424.67 = 11,786.38 : x
  2. Step 2: Convert to fraction form
    42,948.70/64,424.67 = 11,786.38/x
  3. Step 3: Cross multiply
    42,948.70x = 64,424.67 × 11,786.38
  4. Step 4: Simplify right side
    42,948.70x = 759,333,641.99
  5. Step 5: Solve for x
    x = 759,333,641.99/42,948.70
  6. Step 6: Final answer
    x = 17,680.01

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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.