Home / 27,220.95-40,765.82-18,429.21

Finding the Fourth Proportional to 27,220.95, 40,765.82 and 18,429.21

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Solution

The fourth proportional to 27,220.95, 40,765.82 and 18,429.21 is: 27,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.95 : 40,765.82 = 18,429.21 : x
  2. Step 2: Convert to fraction form
    27,220.95/40,765.82 = 18,429.21/x
  3. Step 3: Cross multiply
    27,220.95x = 40,765.82 × 18,429.21
  4. Step 4: Simplify right side
    27,220.95x = 751,281,765.46
  5. Step 5: Solve for x
    x = 751,281,765.46/27,220.95
  6. Step 6: Final answer
    x = 27,599.40

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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.