Home / 30,879.34-42,613.20-16,732.16

Finding the Fourth Proportional to 30,879.34, 42,613.20 and 16,732.16

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Solution

The fourth proportional to 30,879.34, 42,613.20 and 16,732.16 is: 23,090.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,879.34 : 42,613.20 = 16,732.16 : x
  2. Step 2: Convert to fraction form
    30,879.34/42,613.20 = 16,732.16/x
  3. Step 3: Cross multiply
    30,879.34x = 42,613.20 × 16,732.16
  4. Step 4: Simplify right side
    30,879.34x = 713,010,880.51
  5. Step 5: Solve for x
    x = 713,010,880.51/30,879.34
  6. Step 6: Final answer
    x = 23,090.22

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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.