Home / 42,802.80-64,204.32-11,638.04

Finding the Fourth Proportional to 42,802.80, 64,204.32 and 11,638.04

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Solution

The fourth proportional to 42,802.80, 64,204.32 and 11,638.04 is: 17,457.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,802.80 : 64,204.32 = 11,638.04 : x
  2. Step 2: Convert to fraction form
    42,802.80/64,204.32 = 11,638.04/x
  3. Step 3: Cross multiply
    42,802.80x = 64,204.32 × 11,638.04
  4. Step 4: Simplify right side
    42,802.80x = 747,212,444.33
  5. Step 5: Solve for x
    x = 747,212,444.33/42,802.80
  6. Step 6: Final answer
    x = 17,457.09

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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.