Home / 30,807.45-42,514.29-16,660.26

Finding the Fourth Proportional to 30,807.45, 42,514.29 and 16,660.26

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Solution

The fourth proportional to 30,807.45, 42,514.29 and 16,660.26 is: 22,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,807.45 : 42,514.29 = 16,660.26 : x
  2. Step 2: Convert to fraction form
    30,807.45/42,514.29 = 16,660.26/x
  3. Step 3: Cross multiply
    30,807.45x = 42,514.29 × 16,660.26
  4. Step 4: Simplify right side
    30,807.45x = 708,299,125.12
  5. Step 5: Solve for x
    x = 708,299,125.12/30,807.45
  6. Step 6: Final answer
    x = 22,991.16

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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.