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Finding the Fourth Proportional to 27,399.62, 37,810.62 and 15,300.44

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Solution

The fourth proportional to 27,399.62, 37,810.62 and 15,300.44 is: 21,114.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,399.62 : 37,810.62 = 15,300.44 : x
  2. Step 2: Convert to fraction form
    27,399.62/37,810.62 = 15,300.44/x
  3. Step 3: Cross multiply
    27,399.62x = 37,810.62 × 15,300.44
  4. Step 4: Simplify right side
    27,399.62x = 578,519,122.67
  5. Step 5: Solve for x
    x = 578,519,122.67/27,399.62
  6. Step 6: Final answer
    x = 21,114.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.