Home / 27,603.20-41,372.40-12,780.84

Finding the Fourth Proportional to 27,603.20, 41,372.40 and 12,780.84

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Solution

The fourth proportional to 27,603.20, 41,372.40 and 12,780.84 is: 19,156.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,603.20 : 41,372.40 = 12,780.84 : x
  2. Step 2: Convert to fraction form
    27,603.20/41,372.40 = 12,780.84/x
  3. Step 3: Cross multiply
    27,603.20x = 41,372.40 × 12,780.84
  4. Step 4: Simplify right side
    27,603.20x = 528,774,024.82
  5. Step 5: Solve for x
    x = 528,774,024.82/27,603.20
  6. Step 6: Final answer
    x = 19,156.26

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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.