Home / 30,645.56-42,294.29-18,552.70

Finding the Fourth Proportional to 30,645.56, 42,294.29 and 18,552.70

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Solution

The fourth proportional to 30,645.56, 42,294.29 and 18,552.70 is: 25,604.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645.56 : 42,294.29 = 18,552.70 : x
  2. Step 2: Convert to fraction form
    30,645.56/42,294.29 = 18,552.70/x
  3. Step 3: Cross multiply
    30,645.56x = 42,294.29 × 18,552.70
  4. Step 4: Simplify right side
    30,645.56x = 784,673,274.08
  5. Step 5: Solve for x
    x = 784,673,274.08/30,645.56
  6. Step 6: Final answer
    x = 25,604.79

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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.