Home / 42,343.37-63,539.66-18,969.81

Finding the Fourth Proportional to 42,343.37, 63,539.66 and 18,969.81

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Solution

The fourth proportional to 42,343.37, 63,539.66 and 18,969.81 is: 28,465.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,343.37 : 63,539.66 = 18,969.81 : x
  2. Step 2: Convert to fraction form
    42,343.37/63,539.66 = 18,969.81/x
  3. Step 3: Cross multiply
    42,343.37x = 63,539.66 × 18,969.81
  4. Step 4: Simplify right side
    42,343.37x = 1,205,335,277.66
  5. Step 5: Solve for x
    x = 1,205,335,277.66/42,343.37
  6. Step 6: Final answer
    x = 28,465.74

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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.