Home / 20,299.68-28,013.43-11,347.14

Finding the Fourth Proportional to 20,299.68, 28,013.43 and 11,347.14

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Solution

The fourth proportional to 20,299.68, 28,013.43 and 11,347.14 is: 15,658.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.68 : 28,013.43 = 11,347.14 : x
  2. Step 2: Convert to fraction form
    20,299.68/28,013.43 = 11,347.14/x
  3. Step 3: Cross multiply
    20,299.68x = 28,013.43 × 11,347.14
  4. Step 4: Simplify right side
    20,299.68x = 317,872,312.09
  5. Step 5: Solve for x
    x = 317,872,312.09/20,299.68
  6. Step 6: Final answer
    x = 15,658.98

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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.