Home / 20,173.95-27,837.33-11,220.31

Finding the Fourth Proportional to 20,173.95, 27,837.33 and 11,220.31

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Solution

The fourth proportional to 20,173.95, 27,837.33 and 11,220.31 is: 15,482.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,173.95 : 27,837.33 = 11,220.31 : x
  2. Step 2: Convert to fraction form
    20,173.95/27,837.33 = 11,220.31/x
  3. Step 3: Cross multiply
    20,173.95x = 27,837.33 × 11,220.31
  4. Step 4: Simplify right side
    20,173.95x = 312,343,472.17
  5. Step 5: Solve for x
    x = 312,343,472.17/20,173.95
  6. Step 6: Final answer
    x = 15,482.51

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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.