Home / 30,854.50-42,588.20-18,110.96

Finding the Fourth Proportional to 30,854.50, 42,588.20 and 18,110.96

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Solution

The fourth proportional to 30,854.50, 42,588.20 and 18,110.96 is: 24,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.50 : 42,588.20 = 18,110.96 : x
  2. Step 2: Convert to fraction form
    30,854.50/42,588.20 = 18,110.96/x
  3. Step 3: Cross multiply
    30,854.50x = 42,588.20 × 18,110.96
  4. Step 4: Simplify right side
    30,854.50x = 771,313,186.67
  5. Step 5: Solve for x
    x = 771,313,186.67/30,854.50
  6. Step 6: Final answer
    x = 24,998.40

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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.