Home / 42,463.51-63,688.07-12,874.21

Finding the Fourth Proportional to 42,463.51, 63,688.07 and 12,874.21

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Solution

The fourth proportional to 42,463.51, 63,688.07 and 12,874.21 is: 19,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,463.51 : 63,688.07 = 12,874.21 : x
  2. Step 2: Convert to fraction form
    42,463.51/63,688.07 = 12,874.21/x
  3. Step 3: Cross multiply
    42,463.51x = 63,688.07 × 12,874.21
  4. Step 4: Simplify right side
    42,463.51x = 819,933,460.64
  5. Step 5: Solve for x
    x = 819,933,460.64/42,463.51
  6. Step 6: Final answer
    x = 19,309.13

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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.