Home / 30,899.36-42,640.72-16,752.16

Finding the Fourth Proportional to 30,899.36, 42,640.72 and 16,752.16

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Solution

The fourth proportional to 30,899.36, 42,640.72 and 16,752.16 is: 23,117.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,899.36 : 42,640.72 = 16,752.16 : x
  2. Step 2: Convert to fraction form
    30,899.36/42,640.72 = 16,752.16/x
  3. Step 3: Cross multiply
    30,899.36x = 42,640.72 × 16,752.16
  4. Step 4: Simplify right side
    30,899.36x = 714,324,163.96
  5. Step 5: Solve for x
    x = 714,324,163.96/30,899.36
  6. Step 6: Final answer
    x = 23,117.77

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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.