Home / 25,646.32-38,440.72-16,778.69

Finding the Fourth Proportional to 25,646.32, 38,440.72 and 16,778.69

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Solution

The fourth proportional to 25,646.32, 38,440.72 and 16,778.69 is: 25,149.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,646.32 : 38,440.72 = 16,778.69 : x
  2. Step 2: Convert to fraction form
    25,646.32/38,440.72 = 16,778.69/x
  3. Step 3: Cross multiply
    25,646.32x = 38,440.72 × 16,778.69
  4. Step 4: Simplify right side
    25,646.32x = 644,984,924.26
  5. Step 5: Solve for x
    x = 644,984,924.26/25,646.32
  6. Step 6: Final answer
    x = 25,149.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.