Home / 42,617.09-63,941.23-19,831.81

Finding the Fourth Proportional to 42,617.09, 63,941.23 and 19,831.81

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Solution

The fourth proportional to 42,617.09, 63,941.23 and 19,831.81 is: 29,754.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,617.09 : 63,941.23 = 19,831.81 : x
  2. Step 2: Convert to fraction form
    42,617.09/63,941.23 = 19,831.81/x
  3. Step 3: Cross multiply
    42,617.09x = 63,941.23 × 19,831.81
  4. Step 4: Simplify right side
    42,617.09x = 1,268,070,324.53
  5. Step 5: Solve for x
    x = 1,268,070,324.53/42,617.09
  6. Step 6: Final answer
    x = 29,754.97

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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.