Home / 30,680.56-42,366.92-19,370.08

Finding the Fourth Proportional to 30,680.56, 42,366.92 and 19,370.08

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Solution

The fourth proportional to 30,680.56, 42,366.92 and 19,370.08 is: 26,748.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.56 : 42,366.92 = 19,370.08 : x
  2. Step 2: Convert to fraction form
    30,680.56/42,366.92 = 19,370.08/x
  3. Step 3: Cross multiply
    30,680.56x = 42,366.92 × 19,370.08
  4. Step 4: Simplify right side
    30,680.56x = 820,650,629.75
  5. Step 5: Solve for x
    x = 820,650,629.75/30,680.56
  6. Step 6: Final answer
    x = 26,748.23

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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.