Home / 42,478.41-63,742.19-17,513.81

Finding the Fourth Proportional to 42,478.41, 63,742.19 and 17,513.81

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Solution

The fourth proportional to 42,478.41, 63,742.19 and 17,513.81 is: 26,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,478.41 : 63,742.19 = 17,513.81 : x
  2. Step 2: Convert to fraction form
    42,478.41/63,742.19 = 17,513.81/x
  3. Step 3: Cross multiply
    42,478.41x = 63,742.19 × 17,513.81
  4. Step 4: Simplify right side
    42,478.41x = 1,116,368,198.36
  5. Step 5: Solve for x
    x = 1,116,368,198.36/42,478.41
  6. Step 6: Final answer
    x = 26,280.84

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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.