Home / 20,567.21-28,383.03-12,498.57

Finding the Fourth Proportional to 20,567.21, 28,383.03 and 12,498.57

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Solution

The fourth proportional to 20,567.21, 28,383.03 and 12,498.57 is: 17,248.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,567.21 : 28,383.03 = 12,498.57 : x
  2. Step 2: Convert to fraction form
    20,567.21/28,383.03 = 12,498.57/x
  3. Step 3: Cross multiply
    20,567.21x = 28,383.03 × 12,498.57
  4. Step 4: Simplify right side
    20,567.21x = 354,747,224.77
  5. Step 5: Solve for x
    x = 354,747,224.77/20,567.21
  6. Step 6: Final answer
    x = 17,248.19

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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.