Home / 28,114.07-38,796.10-15,367.91

Finding the Fourth Proportional to 28,114.07, 38,796.10 and 15,367.91

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Solution

The fourth proportional to 28,114.07, 38,796.10 and 15,367.91 is: 21,206.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.07 : 38,796.10 = 15,367.91 : x
  2. Step 2: Convert to fraction form
    28,114.07/38,796.10 = 15,367.91/x
  3. Step 3: Cross multiply
    28,114.07x = 38,796.10 × 15,367.91
  4. Step 4: Simplify right side
    28,114.07x = 596,214,740.75
  5. Step 5: Solve for x
    x = 596,214,740.75/28,114.07
  6. Step 6: Final answer
    x = 21,206.99

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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.