Home / 20,701-28,567.26-11,750.20

Finding the Fourth Proportional to 20,701, 28,567.26 and 11,750.20

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Solution

The fourth proportional to 20,701, 28,567.26 and 11,750.20 is: 16,215.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701 : 28,567.26 = 11,750.20 : x
  2. Step 2: Convert to fraction form
    20,701/28,567.26 = 11,750.20/x
  3. Step 3: Cross multiply
    20,701x = 28,567.26 × 11,750.20
  4. Step 4: Simplify right side
    20,701x = 335,671,018.45
  5. Step 5: Solve for x
    x = 335,671,018.45/20,701
  6. Step 6: Final answer
    x = 16,215.21

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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.