Home / 42,893.28-64,341.72-13,331.16

Finding the Fourth Proportional to 42,893.28, 64,341.72 and 13,331.16

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Solution

The fourth proportional to 42,893.28, 64,341.72 and 13,331.16 is: 19,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,893.28 : 64,341.72 = 13,331.16 : x
  2. Step 2: Convert to fraction form
    42,893.28/64,341.72 = 13,331.16/x
  3. Step 3: Cross multiply
    42,893.28x = 64,341.72 × 13,331.16
  4. Step 4: Simplify right side
    42,893.28x = 857,749,764.00
  5. Step 5: Solve for x
    x = 857,749,764.00/42,893.28
  6. Step 6: Final answer
    x = 19,997.30

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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.