Home / 30,459.41-42,033.71-16,847.45

Finding the Fourth Proportional to 30,459.41, 42,033.71 and 16,847.45

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Solution

The fourth proportional to 30,459.41, 42,033.71 and 16,847.45 is: 23,249.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,459.41 : 42,033.71 = 16,847.45 : x
  2. Step 2: Convert to fraction form
    30,459.41/42,033.71 = 16,847.45/x
  3. Step 3: Cross multiply
    30,459.41x = 42,033.71 × 16,847.45
  4. Step 4: Simplify right side
    30,459.41x = 708,160,827.54
  5. Step 5: Solve for x
    x = 708,160,827.54/30,459.41
  6. Step 6: Final answer
    x = 23,249.33

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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.