Home / 20,294.96-27,973.58-13,578.18

Finding the Fourth Proportional to 20,294.96, 27,973.58 and 13,578.18

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Solution

The fourth proportional to 20,294.96, 27,973.58 and 13,578.18 is: 18,715.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,294.96 : 27,973.58 = 13,578.18 : x
  2. Step 2: Convert to fraction form
    20,294.96/27,973.58 = 13,578.18/x
  3. Step 3: Cross multiply
    20,294.96x = 27,973.58 × 13,578.18
  4. Step 4: Simplify right side
    20,294.96x = 379,830,304.48
  5. Step 5: Solve for x
    x = 379,830,304.48/20,294.96
  6. Step 6: Final answer
    x = 18,715.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.