Home / 42,802.26-64,228.78-19,428.36

Finding the Fourth Proportional to 42,802.26, 64,228.78 and 19,428.36

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Solution

The fourth proportional to 42,802.26, 64,228.78 and 19,428.36 is: 29,154.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,802.26 : 64,228.78 = 19,428.36 : x
  2. Step 2: Convert to fraction form
    42,802.26/64,228.78 = 19,428.36/x
  3. Step 3: Cross multiply
    42,802.26x = 64,228.78 × 19,428.36
  4. Step 4: Simplify right side
    42,802.26x = 1,247,859,860.20
  5. Step 5: Solve for x
    x = 1,247,859,860.20/42,802.26
  6. Step 6: Final answer
    x = 29,154.06

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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.