Home / 30,875.83-42,609.45-18,932.29

Finding the Fourth Proportional to 30,875.83, 42,609.45 and 18,932.29

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Solution

The fourth proportional to 30,875.83, 42,609.45 and 18,932.29 is: 26,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,875.83 : 42,609.45 = 18,932.29 : x
  2. Step 2: Convert to fraction form
    30,875.83/42,609.45 = 18,932.29/x
  3. Step 3: Cross multiply
    30,875.83x = 42,609.45 × 18,932.29
  4. Step 4: Simplify right side
    30,875.83x = 806,694,464.14
  5. Step 5: Solve for x
    x = 806,694,464.14/30,875.83
  6. Step 6: Final answer
    x = 26,127.05

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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.