Home / 20,657.70-28,507.37-11,226.24

Finding the Fourth Proportional to 20,657.70, 28,507.37 and 11,226.24

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Solution

The fourth proportional to 20,657.70, 28,507.37 and 11,226.24 is: 15,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,657.70 : 28,507.37 = 11,226.24 : x
  2. Step 2: Convert to fraction form
    20,657.70/28,507.37 = 11,226.24/x
  3. Step 3: Cross multiply
    20,657.70x = 28,507.37 × 11,226.24
  4. Step 4: Simplify right side
    20,657.70x = 320,030,521.26
  5. Step 5: Solve for x
    x = 320,030,521.26/20,657.70
  6. Step 6: Final answer
    x = 15,492.07

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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.