Home / 42,845.94-64,271.63-13,261.29

Finding the Fourth Proportional to 42,845.94, 64,271.63 and 13,261.29

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Solution

The fourth proportional to 42,845.94, 64,271.63 and 13,261.29 is: 19,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,845.94 : 64,271.63 = 13,261.29 : x
  2. Step 2: Convert to fraction form
    42,845.94/64,271.63 = 13,261.29/x
  3. Step 3: Cross multiply
    42,845.94x = 64,271.63 × 13,261.29
  4. Step 4: Simplify right side
    42,845.94x = 852,324,657.90
  5. Step 5: Solve for x
    x = 852,324,657.90/42,845.94
  6. Step 6: Final answer
    x = 19,892.78

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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.