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Finding the Fourth Proportional to 27,219.40, 40,838.70 and 26,259.40

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Solution

The fourth proportional to 27,219.40, 40,838.70 and 26,259.40 is: 39,398.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,219.40 : 40,838.70 = 26,259.40 : x
  2. Step 2: Convert to fraction form
    27,219.40/40,838.70 = 26,259.40/x
  3. Step 3: Cross multiply
    27,219.40x = 40,838.70 × 26,259.40
  4. Step 4: Simplify right side
    27,219.40x = 1,072,399,758.78
  5. Step 5: Solve for x
    x = 1,072,399,758.78/27,219.40
  6. Step 6: Final answer
    x = 39,398.36

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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.