Home / 27,961.20-41,941.80-10,427.40

Finding the Fourth Proportional to 27,961.20, 41,941.80 and 10,427.40

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Solution

The fourth proportional to 27,961.20, 41,941.80 and 10,427.40 is: 15,641.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,961.20 : 41,941.80 = 10,427.40 : x
  2. Step 2: Convert to fraction form
    27,961.20/41,941.80 = 10,427.40/x
  3. Step 3: Cross multiply
    27,961.20x = 41,941.80 × 10,427.40
  4. Step 4: Simplify right side
    27,961.20x = 437,343,925.32
  5. Step 5: Solve for x
    x = 437,343,925.32/27,961.20
  6. Step 6: Final answer
    x = 15,641.10

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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.