Home / 42,623.71-63,936.78-13,040.89

Finding the Fourth Proportional to 42,623.71, 63,936.78 and 13,040.89

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Solution

The fourth proportional to 42,623.71, 63,936.78 and 13,040.89 is: 19,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,623.71 : 63,936.78 = 13,040.89 : x
  2. Step 2: Convert to fraction form
    42,623.71/63,936.78 = 13,040.89/x
  3. Step 3: Cross multiply
    42,623.71x = 63,936.78 × 13,040.89
  4. Step 4: Simplify right side
    42,623.71x = 833,792,306.19
  5. Step 5: Solve for x
    x = 833,792,306.19/42,623.71
  6. Step 6: Final answer
    x = 19,561.70

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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.