Home / 30,585.33-42,207.44-18,647.91

Finding the Fourth Proportional to 30,585.33, 42,207.44 and 18,647.91

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Solution

The fourth proportional to 30,585.33, 42,207.44 and 18,647.91 is: 25,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.33 : 42,207.44 = 18,647.91 : x
  2. Step 2: Convert to fraction form
    30,585.33/42,207.44 = 18,647.91/x
  3. Step 3: Cross multiply
    30,585.33x = 42,207.44 × 18,647.91
  4. Step 4: Simplify right side
    30,585.33x = 787,080,449.21
  5. Step 5: Solve for x
    x = 787,080,449.21/30,585.33
  6. Step 6: Final answer
    x = 25,733.92

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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.