Home / 30,892.32-42,632.37-18,631.17

Finding the Fourth Proportional to 30,892.32, 42,632.37 and 18,631.17

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Solution

The fourth proportional to 30,892.32, 42,632.37 and 18,631.17 is: 25,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,892.32 : 42,632.37 = 18,631.17 : x
  2. Step 2: Convert to fraction form
    30,892.32/42,632.37 = 18,631.17/x
  3. Step 3: Cross multiply
    30,892.32x = 42,632.37 × 18,631.17
  4. Step 4: Simplify right side
    30,892.32x = 794,290,932.97
  5. Step 5: Solve for x
    x = 794,290,932.97/30,892.32
  6. Step 6: Final answer
    x = 25,711.60

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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.