Home / 20,211.50-27,892.73-11,259.01

Finding the Fourth Proportional to 20,211.50, 27,892.73 and 11,259.01

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Solution

The fourth proportional to 20,211.50, 27,892.73 and 11,259.01 is: 15,537.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.50 : 27,892.73 = 11,259.01 : x
  2. Step 2: Convert to fraction form
    20,211.50/27,892.73 = 11,259.01/x
  3. Step 3: Cross multiply
    20,211.50x = 27,892.73 × 11,259.01
  4. Step 4: Simplify right side
    20,211.50x = 314,044,526.00
  5. Step 5: Solve for x
    x = 314,044,526.00/20,211.50
  6. Step 6: Final answer
    x = 15,537.91

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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.