Home / 30,494.03-42,083.06-18,854.78

Finding the Fourth Proportional to 30,494.03, 42,083.06 and 18,854.78

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Solution

The fourth proportional to 30,494.03, 42,083.06 and 18,854.78 is: 26,020.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,494.03 : 42,083.06 = 18,854.78 : x
  2. Step 2: Convert to fraction form
    30,494.03/42,083.06 = 18,854.78/x
  3. Step 3: Cross multiply
    30,494.03x = 42,083.06 × 18,854.78
  4. Step 4: Simplify right side
    30,494.03x = 793,466,743.75
  5. Step 5: Solve for x
    x = 793,466,743.75/30,494.03
  6. Step 6: Final answer
    x = 26,020.40

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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.