Home / 42,802.38-64,210.48-13,213.31

Finding the Fourth Proportional to 42,802.38, 64,210.48 and 13,213.31

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Solution

The fourth proportional to 42,802.38, 64,210.48 and 13,213.31 is: 19,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,802.38 : 64,210.48 = 13,213.31 : x
  2. Step 2: Convert to fraction form
    42,802.38/64,210.48 = 13,213.31/x
  3. Step 3: Cross multiply
    42,802.38x = 64,210.48 × 13,213.31
  4. Step 4: Simplify right side
    42,802.38x = 848,432,623.40
  5. Step 5: Solve for x
    x = 848,432,623.40/42,802.38
  6. Step 6: Final answer
    x = 19,822.09

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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.