Home / 30,685.96-42,332.34-19,350.28

Finding the Fourth Proportional to 30,685.96, 42,332.34 and 19,350.28

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Solution

The fourth proportional to 30,685.96, 42,332.34 and 19,350.28 is: 26,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,685.96 : 42,332.34 = 19,350.28 : x
  2. Step 2: Convert to fraction form
    30,685.96/42,332.34 = 19,350.28/x
  3. Step 3: Cross multiply
    30,685.96x = 42,332.34 × 19,350.28
  4. Step 4: Simplify right side
    30,685.96x = 819,142,632.06
  5. Step 5: Solve for x
    x = 819,142,632.06/30,685.96
  6. Step 6: Final answer
    x = 26,694.38

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Similar ratio
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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.