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Finding the Fourth Proportional to 27,389.80, 41,011.80 and 17,475.40

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Solution

The fourth proportional to 27,389.80, 41,011.80 and 17,475.40 is: 26,166.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,389.80 : 41,011.80 = 17,475.40 : x
  2. Step 2: Convert to fraction form
    27,389.80/41,011.80 = 17,475.40/x
  3. Step 3: Cross multiply
    27,389.80x = 41,011.80 × 17,475.40
  4. Step 4: Simplify right side
    27,389.80x = 716,697,609.72
  5. Step 5: Solve for x
    x = 716,697,609.72/27,389.80
  6. Step 6: Final answer
    x = 26,166.59

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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.