Home / 42,778.45-64,178.61-16,476.13

Finding the Fourth Proportional to 42,778.45, 64,178.61 and 16,476.13

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Solution

The fourth proportional to 42,778.45, 64,178.61 and 16,476.13 is: 24,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,778.45 : 64,178.61 = 16,476.13 : x
  2. Step 2: Convert to fraction form
    42,778.45/64,178.61 = 16,476.13/x
  3. Step 3: Cross multiply
    42,778.45x = 64,178.61 × 16,476.13
  4. Step 4: Simplify right side
    42,778.45x = 1,057,415,121.58
  5. Step 5: Solve for x
    x = 1,057,415,121.58/42,778.45
  6. Step 6: Final answer
    x = 24,718.41

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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.