Home / 30,335.52-45,552.68-18,722.56

Finding the Fourth Proportional to 30,335.52, 45,552.68 and 18,722.56

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Solution

The fourth proportional to 30,335.52, 45,552.68 and 18,722.56 is: 28,114.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,335.52 : 45,552.68 = 18,722.56 : x
  2. Step 2: Convert to fraction form
    30,335.52/45,552.68 = 18,722.56/x
  3. Step 3: Cross multiply
    30,335.52x = 45,552.68 × 18,722.56
  4. Step 4: Simplify right side
    30,335.52x = 852,862,784.46
  5. Step 5: Solve for x
    x = 852,862,784.46/30,335.52
  6. Step 6: Final answer
    x = 28,114.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.