Home / 20,281.39-27,785.01-19,523.32

Finding the Fourth Proportional to 20,281.39, 27,785.01 and 19,523.32

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Solution

The fourth proportional to 20,281.39, 27,785.01 and 19,523.32 is: 26,746.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281.39 : 27,785.01 = 19,523.32 : x
  2. Step 2: Convert to fraction form
    20,281.39/27,785.01 = 19,523.32/x
  3. Step 3: Cross multiply
    20,281.39x = 27,785.01 × 19,523.32
  4. Step 4: Simplify right side
    20,281.39x = 542,455,641.43
  5. Step 5: Solve for x
    x = 542,455,641.43/20,281.39
  6. Step 6: Final answer
    x = 26,746.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.