Home / 27,474.38-37,931.68-21,088.75

Finding the Fourth Proportional to 27,474.38, 37,931.68 and 21,088.75

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Solution

The fourth proportional to 27,474.38, 37,931.68 and 21,088.75 is: 29,115.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,474.38 : 37,931.68 = 21,088.75 : x
  2. Step 2: Convert to fraction form
    27,474.38/37,931.68 = 21,088.75/x
  3. Step 3: Cross multiply
    27,474.38x = 37,931.68 × 21,088.75
  4. Step 4: Simplify right side
    27,474.38x = 799,931,509.55
  5. Step 5: Solve for x
    x = 799,931,509.55/27,474.38
  6. Step 6: Final answer
    x = 29,115.54

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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.