Home / 30,965.49-42,707.25-19,007.46

Finding the Fourth Proportional to 30,965.49, 42,707.25 and 19,007.46

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Solution

The fourth proportional to 30,965.49, 42,707.25 and 19,007.46 is: 26,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,965.49 : 42,707.25 = 19,007.46 : x
  2. Step 2: Convert to fraction form
    30,965.49/42,707.25 = 19,007.46/x
  3. Step 3: Cross multiply
    30,965.49x = 42,707.25 × 19,007.46
  4. Step 4: Simplify right side
    30,965.49x = 811,756,346.09
  5. Step 5: Solve for x
    x = 811,756,346.09/30,965.49
  6. Step 6: Final answer
    x = 26,214.87

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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.