Home / 28,109.32-38,794.98-16,931.08

Finding the Fourth Proportional to 28,109.32, 38,794.98 and 16,931.08

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Solution

The fourth proportional to 28,109.32, 38,794.98 and 16,931.08 is: 23,367.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109.32 : 38,794.98 = 16,931.08 : x
  2. Step 2: Convert to fraction form
    28,109.32/38,794.98 = 16,931.08/x
  3. Step 3: Cross multiply
    28,109.32x = 38,794.98 × 16,931.08
  4. Step 4: Simplify right side
    28,109.32x = 656,840,909.98
  5. Step 5: Solve for x
    x = 656,840,909.98/28,109.32
  6. Step 6: Final answer
    x = 23,367.37

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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.