Home / 20,113.49-27,747.28-12,554.93

Finding the Fourth Proportional to 20,113.49, 27,747.28 and 12,554.93

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Solution

The fourth proportional to 20,113.49, 27,747.28 and 12,554.93 is: 17,319.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.49 : 27,747.28 = 12,554.93 : x
  2. Step 2: Convert to fraction form
    20,113.49/27,747.28 = 12,554.93/x
  3. Step 3: Cross multiply
    20,113.49x = 27,747.28 × 12,554.93
  4. Step 4: Simplify right side
    20,113.49x = 348,365,158.09
  5. Step 5: Solve for x
    x = 348,365,158.09/20,113.49
  6. Step 6: Final answer
    x = 17,319.98

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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.