Home / 20,725.32-31,027.77-18,588.14

Finding the Fourth Proportional to 20,725.32, 31,027.77 and 18,588.14

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Solution

The fourth proportional to 20,725.32, 31,027.77 and 18,588.14 is: 27,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.32 : 31,027.77 = 18,588.14 : x
  2. Step 2: Convert to fraction form
    20,725.32/31,027.77 = 18,588.14/x
  3. Step 3: Cross multiply
    20,725.32x = 31,027.77 × 18,588.14
  4. Step 4: Simplify right side
    20,725.32x = 576,748,377.51
  5. Step 5: Solve for x
    x = 576,748,377.51/20,725.32
  6. Step 6: Final answer
    x = 27,828.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.