Home / 20,444.29-28,201.35-12,774.26

Finding the Fourth Proportional to 20,444.29, 28,201.35 and 12,774.26

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Solution

The fourth proportional to 20,444.29, 28,201.35 and 12,774.26 is: 17,621.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,444.29 : 28,201.35 = 12,774.26 : x
  2. Step 2: Convert to fraction form
    20,444.29/28,201.35 = 12,774.26/x
  3. Step 3: Cross multiply
    20,444.29x = 28,201.35 × 12,774.26
  4. Step 4: Simplify right side
    20,444.29x = 360,251,438.04
  5. Step 5: Solve for x
    x = 360,251,438.04/20,444.29
  6. Step 6: Final answer
    x = 17,621.13

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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.