Home / 42,501.84-63,760.05-12,922.66

Finding the Fourth Proportional to 42,501.84, 63,760.05 and 12,922.66

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Solution

The fourth proportional to 42,501.84, 63,760.05 and 12,922.66 is: 19,386.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,501.84 : 63,760.05 = 12,922.66 : x
  2. Step 2: Convert to fraction form
    42,501.84/63,760.05 = 12,922.66/x
  3. Step 3: Cross multiply
    42,501.84x = 63,760.05 × 12,922.66
  4. Step 4: Simplify right side
    42,501.84x = 823,949,383.12
  5. Step 5: Solve for x
    x = 823,949,383.12/42,501.84
  6. Step 6: Final answer
    x = 19,386.21

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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.